Symbols Numbers



## operator, [cpp.concat]
#elif, [cpp.cond]
#else, [cpp.cond]
#endif, [cpp.cond]
#ifdef, [cpp.cond]
#ifndef, [cpp.cond]
..., see ellipsis
bit-field declaration, [class.bit]
label specifier, [stmt.label]
__cplusplus, [cpp.predefined]
__cpp_­aggregate_­bases, [cpp.predefined]
__cpp_­aggregate_­nsdmi, [cpp.predefined]
__cpp_­aggregate_­paren_­init, [cpp.predefined]
__cpp_­alias_­templates, [cpp.predefined]
__cpp_­aligned_­new, [cpp.predefined]
__cpp_­attributes, [cpp.predefined]
__cpp_­binary_­literals, [cpp.predefined]
__cpp_­capture_­star_­this, [cpp.predefined]
__cpp_­char8_­t, [cpp.predefined]
__cpp_­concepts, [cpp.predefined]
__cpp_­conditional_­explicit, [cpp.predefined]
__cpp_­consteval, [cpp.predefined]
__cpp_­constexpr, [cpp.predefined]
__cpp_­constexpr_­dynamic_­alloc, [cpp.predefined]
__cpp_­constexpr_­in_­decltype, [cpp.predefined]
__cpp_­constinit, [cpp.predefined]
__cpp_­decltype, [cpp.predefined]
__cpp_­decltype_­auto, [cpp.predefined]
__cpp_­deduction_­guides, [cpp.predefined]
__cpp_­delegating_­constructors, [cpp.predefined]
__cpp_­designated_­initializers, [cpp.predefined]
__cpp_­enumerator_­attributes, [cpp.predefined]
__cpp_­fold_­expressions, [cpp.predefined]
__cpp_­generic_­lambdas, [cpp.predefined]
__cpp_­guaranteed_­copy_­elision, [cpp.predefined]
__cpp_­hex_­float, [cpp.predefined]
__cpp_­if_­consteval, [cpp.predefined]
__cpp_­if_­constexpr, [cpp.predefined]
__cpp_­impl_­coroutine, [cpp.predefined]
__cpp_­impl_­destroying_­delete, [cpp.predefined]
__cpp_­impl_­three_­way_­comparison, [cpp.predefined]
__cpp_­inheriting_­constructors, [cpp.predefined]
__cpp_­init_­captures, [cpp.predefined]
__cpp_­initializer_­lists, [cpp.predefined]
__cpp_­inline_­variables, [cpp.predefined]
__cpp_­lambdas, [cpp.predefined]
__cpp_­modules, [cpp.predefined]
__cpp_­namespace_­attributes, [cpp.predefined]
__cpp_­noexcept_­function_­type, [cpp.predefined]
__cpp_­nontype_­template_­args, [cpp.predefined]
__cpp_­nontype_­template_­parameter_­auto, [cpp.predefined]
__cpp_­nsdmi, [cpp.predefined]
__cpp_­range_­based_­for, [cpp.predefined]
__cpp_­raw_­strings, [cpp.predefined]
__cpp_­ref_­qualifiers, [cpp.predefined]
__cpp_­return_­type_­deduction, [cpp.predefined]
__cpp_­rvalue_­references, [cpp.predefined]
__cpp_­size_­t_­suffix, [cpp.predefined]
__cpp_­sized_­deallocation, [cpp.predefined]
__cpp_­static_­assert, [cpp.predefined]
__cpp_­structured_­bindings, [cpp.predefined]
__cpp_­template_­template_­args, [cpp.predefined]
__cpp_­threadsafe_­static_­init, [cpp.predefined]
__cpp_­unicode_­characters, [cpp.predefined]
__cpp_­unicode_­literals, [cpp.predefined]
__cpp_­user_­defined_­literals, [cpp.predefined]
__cpp_­using_­enum, [cpp.predefined]
__cpp_­variable_­templates, [cpp.predefined]
__cpp_­variadic_­templates, [cpp.predefined]
__cpp_­variadic_­using, [cpp.predefined]
__has_­cpp_­attribute, [cpp.cond]
__has_­include, [cpp.cond]
__STDC_­HOSTED__, [cpp.predefined]
__STDC_­ISO_­10646__, [cpp.predefined]
__STDC_­MB_­MIGHT_­NEQ_­WC__, [cpp.predefined]
__STDC_­VERSION__, [cpp.predefined]
__STDCPP_­DEFAULT_­NEW_­ALIGNMENT__, [cpp.predefined]
__STDCPP_­THREADS__, [cpp.predefined]
block statement, [stmt.block]
class declaration, [class.pre]
class definition, [class.pre]
enum declaration, [dcl.enum]
initializer list, [dcl.init.aggr]


0, see also zero, null
null character, see character, null
string terminator, [lex.string]


template function, see template, function, abbreviated
absolute path, see path, absolute
abstract class, see class, abstract
abstract-declarator, [], [gram.dcl]
abstract-pack-declarator, [], [gram.dcl]
access control, [class.access.general]
anonymous union, [class.union.anon]
base class member, [class.derived.general]
class member, [expr.ref]
default argument, [class.access.general]
friend function, [class.friend]
member function and, [special]
multiple access, [class.paths]
nested class, [class.access.nest]
using-declaration and, [namespace.udecl]
virtual function, [class.access.virt]
active, see variable, active
union member, [class.union.general]
active macro directive, see macro, active
addition operator, see operator, addition
additive-expression, [expr.add], [gram.expr]
addressable function, see function, addressable
aggregate deduction candidate, see candidate, aggregate deduction
aggregate initialization, [dcl.init.aggr]
alias template, see template, alias
alias-declaration, [dcl.pre], [gram.dcl]
alignment, [basic.align]
extended, [basic.align]
fundamental, [basic.align]
new-extended, [basic.align]
stricter, [basic.align]
stronger, [basic.align]
alignment requirement
implementation-defined, [basic.align]
alignment-specifier, [dcl.attr.grammar], [gram.dcl]
allocated type, see type, allocated
alignment storage, []
implementation-defined bit-field, [class.bit]
allocation functions, []
alternate form
format string, [format.string.std]
alternative token, see token, alternative
base class member, [class.member.lookup]
class conversion, [class.member.lookup]
declaration type, [dcl.spec.general]
declaration versus cast, [dcl.ambig.res]
declaration versus expression, [stmt.ambig]
function declaration, [dcl.init.general]
member access, [class.member.lookup]
overloaded function, [over.match.general]
parentheses and, []
ambiguous conversion sequence, see conversion sequence, ambiguous
Amendment 1, [extern.names]
and-expression, [expr.bit.and], [gram.expr]
appearance-ordered, [basic.start.dynamic]
argument, [defns.argument], [defns.argument.macro], [defns.argument.throw], [defns.argument.templ], [res.on.arguments], [res.on.macro.definitions], [out.of.range]
access checking and default, [class.access.general]
binding of default, [dcl.fct.default]
evaluation of default, [dcl.fct.default]
example of default, [dcl.fct.default]
function call expression, [defns.argument]
function-like macro, [defns.argument.macro]
overloaded operator and default, [over.oper.general]
reference, []
scope of default, [dcl.fct.default]
template instantiation, [defns.argument.templ]
throw expression, [defns.argument.throw]
type checking of default, [dcl.fct.default]
argument and name hiding
argument and virtual function
argument forwarding call wrapper, [func.require]
argument list
empty, [dcl.fct]
variable, [dcl.fct]
argument passing, []
reference and, [dcl.init.ref]
argument substitution, see macro, argument substitution
argument type
unknown, [dcl.fct]
argument-dependent lookup, see lookup, argument-dependent
pointer, [expr.add]
element, [dcl.array]
handler of type, [except.handle]
parameter of type, [dcl.fct]
template parameter of type, [temp.param]
as aggregate, [array.overview]
contiguous storage, [array.overview]
tuple interface to, [array.tuple]
zero sized, []
array size
default, [dcl.array]
array type, [dcl.array]
arrow operator, see operator, class member access
as-if rule, [intro.abstract]
asm, [lex.key], [dcl.asm], [gram.dcl]
implementation-defined, [dcl.asm]
asm-declaration, [dcl.asm], [gram.dcl]
assembler, [dcl.asm]
and lvalue, [expr.ass]
conversion by, [expr.ass]
reference, [dcl.init.ref]
assignment operator
copy, [special], [class.copy.assign]
implicitly declared, [class.copy.assign]
implicitly defined, [class.copy.assign]
non-trivial, [class.copy.assign]
virtual bases and, [class.copy.assign]
overloaded, [over.ass]
assignment-expression, [expr.ass], [gram.expr]
assignment-operator, [expr.ass], [gram.expr]
associated constraints, [temp.constr.decl]
associative containers
exception safety, [associative.reqmts.except]
asynchronous provider, [futures.state]
asynchronous return object, [futures.state]
at least as constrained, [temp.constr.order]
at least as specialized as, see more specialized
notifying operation, [atomics.wait]
smart pointers, [util.smartptr.atomic]
waiting operation, [atomics.wait]
eligible to be unblocked, [atomics.wait]
atomic constraint, see constraint, atomic
declaration, [module.unit]
entity, []
attribute, [dcl.attr]
alignment, [dcl.align]
carries dependency, [dcl.attr.depend]
maybe unused, [dcl.attr.unused]
no unique address, [dcl.attr.nouniqueaddr]
syntax and semantics, [dcl.attr.grammar]
attribute-argument-clause, [dcl.attr.grammar], [gram.dcl]
attribute-declaration, [dcl.pre], [gram.dcl]
attribute-namespace, [dcl.attr.grammar], [gram.dcl]
attribute-scoped-token, [dcl.attr.grammar], [gram.dcl]
attribute-specifier, [dcl.attr.grammar], [gram.dcl]
attribute-specifier-seq, [dcl.attr.grammar], [gram.dcl]
attribute-token, [dcl.attr.grammar], [gram.dcl]
attribute-using-prefix, [dcl.attr.grammar], [gram.dcl]
automatic storage duration, see storage duration, automatic
await-expression, [expr.await], [gram.expr]


backslash character, [lex.ccon]
bad_­alloc, []
bad_­typeid, [expr.typeid]
balanced-token-seq, [dcl.attr.grammar], [gram.dcl]
phase synchronization point, [thread.barrier.class]
barrier phase, [thread.barrier.class]
base characteristic, [meta.rqmts]
base class subobject, [intro.object]
base prefix, [format.string.std]
base-2 representation, [basic.fundamental]
basic-c-char, [lex.ccon], [gram.lex]
basic-s-char, [lex.string], [gram.lex]
Bernoulli distributions, [rand.dist.bern]
beta functions B, [sf.cmath.beta]
better conversion, see conversion, better
better conversion sequence, see conversion sequence, better
binary fold, [expr.prim.fold]
binary left fold, [expr.prim.fold]
binary operator
interpretation of, [over.binary.general]
binary operator function, see operator function, binary
binary right fold, [expr.prim.fold]
binary-digit, [lex.icon], [gram.lex]
binary-exponent-part, [lex.fcon], [gram.lex]
binary-literal, [lex.icon], [gram.lex]
bind directly, [dcl.init.ref]
reference, [dcl.init.ref]
bit-field, [class.bit]
address of, [class.bit]
alignment of, [class.bit]
implementation-defined alignment of, [class.bit]
implementation-defined sign of, [diff.class]
type of, [class.bit]
unnamed, [class.bit]
zero width of, [class.bit]
block (statement), [defns.block.stmt], see statement, compound
initialization in, [stmt.dcl]
structure, [stmt.dcl]
block scope, see scope, block
block variable, [basic.scope.block]
block-declaration, [dcl.pre], [gram.dcl]
Boolean literal, [lex.bool]
boolean literal, see literal, boolean
Boolean type, [basic.fundamental]
boolean-literal, [lex.bool], [gram.lex]
bound argument entity, [func.def]
bound arguments, [func.bind.bind]
bound, of array, [dcl.array]
brace-or-equal-initializer, [dcl.init.general], [gram.dcl]
braced-init-list, [dcl.init.general], [gram.dcl]
names that want to eat your, [zombie.names]
built-in candidate, [over.match.oper]
built-in operators, see operators, built-in


linkage to, []
standard, [intro.scope]
standard library, [intro.refs]
C++ library headers
importable, [headers]
c-char-sequence, [lex.ccon], [gram.lex]
operator function, [over.oper.general]
call pattern, [func.require]
call signature, [func.def]
call wrapper, [func.def], [func.require]
forwarding, [func.require]
perfect forwarding, [func.require]
callable object, see object, callable
carries a dependency, [intro.races]
cast-expression, [expr.cast], [gram.expr]
casting away constness, [expr.const.cast]
category tag, [std.iterator.tags]
interfering with canines, [hardware.interference]
char-like object, [strings.general]
char-like type, [strings.general]
character, [defns.character]
source file, [lex.phases]
terminating null, [byte.strings]
underscore, []
in identifier, []
character literal, see literal, character
character sequence, [character.seq.general]
character set, [lex.charset]
basic execution, [lex.charset], [intro.memory]
execution, [lex.charset]
character string, [lex.string]
character string literal, [cpp.stringize]
character-literal, [lex.ccon], [gram.lex]
point of error, [temp.res.general]
class, [basic.compound], [class]
cast to incomplete, [expr.cast]
constructor and abstract, [class.abstract]
definition, [basic.def.odr]
derived, [derivation]
implicit-lifetime, [class.prop]
linkage of, []
linkage specification, []
member function, see member function, class
nested, [class.nest]
polymorphic, [class.virtual]
scope of enumerator, [dcl.enum]
trivially copyable, [basic.types.general], [class.prop]
union-like, [class.union.anon]
variant member of, [class.union.anon]
class member access operator function, see operator function, class member access
class name
point of declaration, []
class object
class object copy, see constructor, copy
class object initialization, see constructor
class scope, see scope, class
class-head-name, [class.pre], [gram.class]
class-specifier, [class.pre], [gram.class]
class-virt-specifier, [class.pre], [gram.class]
co_­yield, [lex.key], [expr.yield]
read-read, [intro.races]
read-write, [intro.races]
write-read, [intro.races]
write-write, [intro.races]
coherence-ordered before, [atomics.order]
comma operator, see operator, comma
common comparison type, [class.spaceship]
common initial sequence, [class.mem.general]
compare-expression, [expr.spaceship], [gram.expr]
pointer, [expr.eq]
pointer to function, [expr.eq]
undefined pointer, [expr.add]
comparison category types, [cmp.categories.pre]
comparison operator function, see operator function, comparison
compatible with
separate, [lex.separate]
compiler control line, see preprocessing directive
complete object, [intro.object]
complete object of, [intro.object]
complete-class context, [class.mem.general]
completely defined, [class.mem.general]
composite pointer type, [expr.type]
compound statement, see statement, compound
compound-requirement, [expr.prim.req.compound], [gram.expr]
compound-statement, [stmt.block], [gram.stmt]
macro argument, see ## operator
string, [lex.string]
concept-definition, [temp.concept], [gram.temp]
concept-id, [temp.names]
concurrent forward progress guarantees, [intro.progress]
rules for, [stmt.pre]
conditional-escape-sequence, [lex.ccon], [gram.lex]
conditional-escape-sequence-char, [lex.ccon], [gram.lex]
throw-expression in, [expr.cond]
conditional-expression, [expr.cond], [gram.expr]
conditionally-supported behavior|seebehavior, conditionally-supported, [intro.compliance]
conditionally-supported-directive, [cpp.pre], [gram.cpp]
conflict, [intro.races]
conjunction, [temp.constr.op]
linkage, []
linkage specification, []
type declaration, []
const object, see object, const
undefined change to, []
const volatile object, see object, const volatile
const-default-constructible, [dcl.init.general]
const-qualified, [basic.type.qualifier]
const-volatile-qualified, [basic.type.qualifier]
const_­local_­iterator, [unord.req.general]
constant destruction, see destruction, constant
constant expression, [expr.const], see expression, constant
permitted result of, [expr.const]
constant initialization, [basic.start.static]
constant subexpression, [defns.const.subexpr]
constant-expression, [expr.const], [gram.expr]
constant-initialized, [expr.const]
consteval if statement, see statement, consteval if
constexpr function, [dcl.constexpr]
constexpr if, [stmt.if]
constexpr iterator, see iterator, constexpr
defaulted comparison operator, []
defaulted special member function, [special]
constituent expression, [intro.execution]
constraint, [temp.constr.constr.general]
associated, see associated constraints
immediately-declared, [temp.param]
normalization, [temp.constr.normal]
conjunction, [temp.constr.op]
disjunction, [temp.constr.op]
subsumption, [temp.constr.order]
constraint-expression, [temp.constr.decl], [gram.temp]
constraint-logical-and-expression, [temp.pre], [gram.temp]
constraint-logical-or-expression, [temp.pre], [gram.temp]
construction, [class.cdtor]
dynamic cast and, [class.cdtor]
member access, [class.cdtor]
pointer to member or base, [class.cdtor]
typeid operator, [class.cdtor]
virtual function call, [class.cdtor]
constructor, conversion by, see conversion, user-defined
contains a value
non-deduced, [temp.deduct.type]
contextually converted constant expression of type bool, see conversion, contextual
contextually converted to bool, see conversion, contextual to bool
contextually implicitly converted, [conv.general]
contiguous container, see container, contiguous
control line, see preprocessing directive
control-line, [cpp.pre], [gram.cpp]
argument, [dcl.fct]
array-to-pointer, [conv.array]
boolean, [conv.bool]
contextual, [conv.general]
contextual to bool, [conv.general]
contextual to constant expression of type bool, [expr.const]
deduced return type of user-defined, [class.conv.fct]
derived-to-base, []
floating to integral, [conv.fpint]
floating-point, [conv.double]
function pointer, [conv.fctptr]
function-to-pointer, [conv.func]
implementation-defined pointer integer, [expr.reinterpret.cast]
implicit user-defined, [class.conv.general]
inheritance of user-defined, [class.conv.fct]
integer rank, [conv.rank]
integral, [conv.integral]
integral to floating, [conv.fpint]
lvalue-to-rvalue, [conv.lval], [diff.expr]
narrowing, [dcl.init.list]
null member pointer, [conv.mem]
null pointer, [conv.ptr]
overload resolution and, []
overload resolution and pointer, [over.over]
pointer, [conv.ptr]
pointer-to-member, [conv.mem]
void*, [conv.mem]
qualification, [conv.qual]
return type, [stmt.return]
standard, [conv.general]
temporary materialization, [conv.rval]
to signed, [conv.integral]
to unsigned, [conv.integral]
usual arithmetic, [expr.arith.conv]
virtual user-defined, [class.conv.fct]
conversion explicit type, see casting
conversion function, see conversion, user-defined, [class.conv.fct]
conversion rank, [over.ics.scs]
conversion sequence
indistinguishable, [over.ics.rank]
standard, [conv.general]
user-defined, [over.ics.user]
conversion-declarator, [class.conv.fct], [gram.class]
conversion-function-id, [class.conv.fct], [gram.class]
conversion-type-id, [class.conv.fct], [gram.class]
converted constant expression, see expression, converted constant
converting constructor, see constructor, converting
copy deduction candidate, [over.match.class.deduct]
copy elision|seeconstructor, copy, elision, [class.copy.elision]
copy-initialization, [dcl.init.general]
copy-list-initialization, [dcl.init.list]
core constant expression, see expression, core constant
coroutine return, see co_­return
coroutine state, [dcl.fct.def.coroutine]
coroutine-return-statement, [stmt.return.coroutine], [gram.stmt]
counted range, see range, counted
Cpp17BidirectionalIterator, [bidirectional.iterators]
Cpp17BinaryTypeTrait, [meta.rqmts]
Cpp17Clock, [time.clock.req]
Cpp17CopyAssignable, [utility.arg.requirements]
Cpp17CopyConstructible, [utility.arg.requirements]
Cpp17CopyInsertable into X, [container.requirements.general]
Cpp17DefaultConstructible, [utility.arg.requirements]
Cpp17DefaultInsertable into X, [container.requirements.general]
Cpp17Destructible, [utility.arg.requirements]
Cpp17EmplaceConstructible into X from args, [container.requirements.general]
Cpp17EqualityComparable, [utility.arg.requirements]
Cpp17Erasable from X, [container.requirements.general]
Cpp17ForwardIterator, [forward.iterators]
Cpp17InputIterator, [input.iterators]
Cpp17Iterator, [iterator.iterators]
Cpp17LessThanComparable, [utility.arg.requirements]
Cpp17MoveAssignable, [utility.arg.requirements]
Cpp17MoveConstructible, [utility.arg.requirements]
Cpp17MoveInsertable into X, [container.requirements.general]
Cpp17NullablePointer, [nullablepointer.requirements]
Cpp17OutputIterator, [output.iterators]
Cpp17RandomAccessIterator, [random.access.iterators]
Cpp17TransformationTrait, [meta.rqmts]
Cpp17UnaryTypeTrait, [meta.rqmts]
ctor-initializer, [class.base.init], [gram.class]
current class, see class, current
current instantiation, [temp.dep.type]
dependent member of the, [temp.dep.type]
member of the, [temp.dep.type]
currently handled exception, see exception handling, currently handled exception
customization point, [namespace.std]
cv-qualification signature, [conv.qual]
cv-qualifier-seq, [dcl.decl.general], [gram.dcl]
cv-unqualified, [basic.type.qualifier]


d-char-sequence, [lex.string], [gram.lex]
multiple inheritance, [class.mi]
non-virtual base class, [class.mi]
virtual base class, [class.mi]
data race, [intro.races]
deallocation function
deallocation functions, []
decimal-floating-point-literal, [lex.fcon], [gram.lex]
decimal-literal, [lex.icon], [gram.lex]
decl-reachable, []
decl-specifier-seq, [dcl.spec.general], [gram.dcl]
declaration, [basic.pre], [basic.def], [dcl.dcl], [dcl.pre]
bit-field, [class.bit]
class name, [basic.def]
constant pointer, [dcl.ptr]
default argument, [dcl.fct.default]
definition versus, [basic.def]
ellipsis in function, [], [dcl.fct]
extern, [basic.def]
extern reference, [dcl.init.ref]
forward, []
forward class, []
local class, [class.local]
locus, see locus
multiple, []
object, [dcl.pre]
opaque enum, [basic.def]
overloaded name and friend, [class.friend]
point of, see locus
pointer, [dcl.ptr]
potentially conflict, [basic.scope.scope]
reference, [dcl.ref]
static member, [basic.def]
storage class, []
structured binding, see structured binding declaration
typedef, [dcl.pre]
typedef, [basic.def]
typedef as type, [dcl.typedef]
declaration, [dcl.pre], [gram.dcl]
declaration hiding, see name hiding
declaration-seq, [dcl.pre], [gram.dcl]
declaration-statement, [stmt.dcl], [gram.stmt]
declarative, []
declarator, [basic.def], [dcl.pre], [dcl.decl.general]
function, [dcl.fct]
multidimensional array, [dcl.array]
pointer, [dcl.ptr]
pointer-to-member, [dcl.mptr]
reference, [dcl.ref]
declared specialization, see specialization, declared
decltype-specifier, [dcl.type.decltype], [gram.dcl]
decrement operator
decrement operator function, see operator function, decrement
deducible template, see template, deducible
class template argument, []
placeholder type, []
default access control, see access control, default
default argument
overload resolution and, [over.match.viable]
default argument instantiation, [temp.inst]
default constructor, see constructor, default
default member initializer, [class.mem.general]
default memory resource pointer, []
default-initialization, [dcl.init.general]
deferred function, see function, deferred
define, [basic.def]
defined-macro-expression, [cpp.cond], [gram.cpp]
defining-type-id, [], [gram.dcl]
defining-type-specifier, [dcl.type.general], [gram.dcl]
defining-type-specifier-seq, [dcl.type.general], [gram.dcl]
definition, [basic.def], [basic.def]
class name as type, []
declaration as, [dcl.pre]
function, [dcl.fct.def]
explicitly-defaulted, [dcl.fct.def.default]
local class, [class.local]
member function, [class.mfct]
nested class, [class.nest]
program semantics affected by, [temp.inst]
pure virtual function, [class.abstract]
scope of class, []
static member, []
virtual function, [class.virtual]
definition domain, [basic.def.odr]
definitions, [intro.defs]
single-object, [expr.delete]
delete-expression, [expr.delete], [gram.expr]
deleted definition, see definition, deleted
deleted function, see function, deleted
denormalized value, see number, subnormal
dependency-ordered before, [intro.races]
dependent base class, see base class, dependent
dependent call, see call, dependent
dependent member of the current instantiation, see current instantiation, dependent member of the
dependent name, see name, dependent
dereferenceable iterator, see iterator, dereferenceable
dereferencing, see indirection
derivation, see inheritance
derived object
designated-initializer-clause, [dcl.init.general], [gram.dcl]
designated-initializer-list, [dcl.init.general], [gram.dcl]
destringization, [cpp.pragma.op]
destroying operator delete, see operator delete, destroying
destruction, [class.cdtor]
constant, [expr.const]
dynamic cast and, [class.cdtor]
member access, [class.cdtor]
pointer to member or base, [class.cdtor]
typeid operator, [class.cdtor]
virtual function call, [class.cdtor]
destructor, [class.dtor], [class.dtor], [functions.within.classes]
default, [class.dtor]
explicit call, [class.dtor]
implicit call, [class.dtor]
implicitly defined, [class.dtor]
non-trivial, [class.dtor]
program termination and, [class.dtor]
prospective, [class.dtor]
pure virtual, [class.dtor]
selected, [class.dtor]
virtual, [class.dtor]
diagnosable rules, [intro.compliance.general]
diagnostic message, see message, diagnostic
digit-sequence, [lex.fcon], [gram.lex]
direct base class, see base class, direct
direct member, see member, direct
direct-initialization, [dcl.init.general]
direct-list-initialization, [dcl.init.list]
direct-non-list-initialization, []
directed acyclic graph, see DAG
directive, preprocessing, see preprocessing directive
directive-introducing token, see token, directive-introducing
directory, [fs.general]
directory-separator, [fs.path.generic]
discarded statement, [stmt.if]
discarded-value expression, [expr.context]
disjunction, [temp.constr.op]
disqualifying declaration, see declaration, disqualifying
disqualifying parameter, see parameter, disqualifying
distribution, see random number distribution
obliviousness to interference, [hardware.interference]
domain error, [sf.cmath.general]
virtual base class, [class.member.lookup]
dynamic binding, see function, virtual
dynamic initialization, see initialization, dynamic
dynamic type, see type, dynamic


E (complete elliptic integrals), [sf.cmath.comp.ellint.2]
E (incomplete elliptic integrals), [sf.cmath.ellint.2]
ECMA-262, [intro.refs]
Ei (exponential integrals), [sf.cmath.expint]
elaborated type specifier, see class name, elaborated
elaborated-enum-specifier, [dcl.type.elab], [gram.dcl]
elaborated-type-specifier, [dcl.type.elab], [gram.dcl]
element access functions, [algorithms.parallel.defns]
element type, [dcl.array]
elif-group, [cpp.pre], [gram.cpp]
elif-groups, [cpp.pre], [gram.cpp]
eligible special member function, see special member function, eligible
eligible to be unblocked, [atomics.wait]
copy constructor, see constructor, copy, elision
copy|seeconstructor, copy, elision, [class.copy.elision]
move constructor, see constructor, move, elision
conversion sequence, [], [over.ics.ellipsis]
overload resolution and, [over.match.viable]
elliptic integrals
incomplete E, [sf.cmath.ellint.2]
incomplete F, [sf.cmath.ellint.1]
incomplete Π, [sf.cmath.ellint.3]
else-group, [cpp.pre], [gram.cpp]
empty-declaration, [dcl.pre], [gram.dcl]
enclosing scope, see scope, enclosing
enclosing statement, [stmt.pre]
enclosing-namespace-specifier, [namespace.def.general], [gram.dcl]
encoded character type, [fs.req]
encoding-prefix, [lex.ccon], [gram.lex]
end-of-file, [bitset.operators]
endif-line, [cpp.pre], [gram.cpp]
engine adaptor, see random number engine adaptor
entity, [basic.pre]
implicitly movable, [class.copy.elision]
templated, [temp.pre]
enum name
typedef, [dcl.typedef]
enum-head-name, [dcl.enum], [gram.dcl]
enum-specifier, [dcl.enum], [gram.dcl]
enumerated element, [enumerated.types]
enumerated type, see type, enumerated
enumeration, [dcl.enum]
linkage of, []
scoped, [dcl.enum]
unscoped, [dcl.enum]
using declaration, [enum.udecl]
enumeration scope, see scope, enumeration
enumeration type
conversion to, [expr.static.cast]
conversion to, [expr.static.cast]
definition, [basic.def.odr]
scoped, [dcl.enum]
unscoped, [dcl.enum]
value of, [dcl.enum]
enumerator, [dcl.enum], [gram.dcl]
enumerator-definition, [dcl.enum], [gram.dcl]
enumerator-list, [dcl.enum], [gram.dcl]
equality operator function, see operator function, equality
equality-expression, [expr.eq], [gram.expr]
template type, [temp.type]
expressions, []
template-heads, []
template-parameters, []
equivalent-key group, [unord.req.general]
escape character, see backslash character
escape sequence
escape-sequence, [lex.ccon], [gram.lex]
Eulerian integral of the first kind, see beta
evaluation, [intro.execution]
order of argument, []
signal-safe, [support.signal]
unspecified order of argument, []
unspecified order of function call, []
arithmetic, [expr.pre]
undefined arithmetic, [expr.pre]
exception handling, [except]
constructors and destructors, [except.ctor]
currently handled exception, [except.handle]
exception object, [except.throw], [except.throw]
constructor, [except.throw]
destructor, [except.throw]
function try block, [except.pre]
nearest handler, [except.throw]
rethrowing, [except.throw]
switch, [except.pre]
try block, [except.pre]
exception specification, [except.spec], [except.spec]
constant expression and, [except.spec]
non-throwing, [except.spec]
potentially-throwing, [except.spec]
virtual function and, [except.spec]
exception-declaration, [except.pre], [gram.except]
exclusive-or-expression, [expr.xor], [gram.expr]
execution policy, [execpol.general]
execution step, [intro.progress]
explicit type conversion, see casting
explicit-instantiation, [temp.explicit], [gram.temp]
explicit-specialization, [temp.expl.spec], [gram.temp]
explicit-specifier, [dcl.fct.spec], [gram.dcl]
explicitly captured, [expr.prim.lambda.capture]
explicitly initialized elements
aggregate, [dcl.init.aggr]
exponent-part, [lex.fcon], [gram.lex]
exponential integrals Ei, [sf.cmath.expint]
export-declaration, [module.interface], [gram.module]
exposure, []
expr-or-braced-init-list, [dcl.init.general], [gram.dcl]
expression, [expr.pre]
additive operators, [expr.add]
assignment and compound assignment, [expr.ass]
bitwise AND, [expr.bit.and]
bitwise exclusive OR, [expr.xor]
bitwise inclusive OR, [expr.or]
class member access, [expr.ref]
conditional operator, [expr.cond]
const cast, [expr.const.cast]
converted constant, [expr.const]
core constant, [expr.const]
destructor call, []
dynamic cast, [expr.dynamic.cast]
equality operators, [expr.eq]
equality-preserving, [concepts.equality]
equivalent, see equivalent, expressions
function call, []
functionally equivalent, see functionally equivalent, expressions
integral constant, [expr.const]
left-shift-operator, [expr.shift]
logical AND, [expr.log.and]
logical OR, [expr.log.or]
multiplicative operators, [expr.mul]
order of evaluation of, [expr.pre]
parenthesized, [expr.prim.paren]
pointer-to-member, [expr.mptr.oper]
pointer-to-member constant, [expr.unary.op]
potentially constant evaluated, [expr.const]
potentially evaluated, [basic.def.odr]
primary, [expr.prim]
pseudo-destructor call, []
reference, [expr.type]
reinterpret cast, [expr.reinterpret.cast]
relational operators, [expr.rel]
right-shift-operator, [expr.shift]
rvalue reference, [basic.lval]
spaceship, [expr.spaceship]
static cast, [expr.static.cast]
three-way comparison, [expr.spaceship]
type identification, [expr.typeid]
type-dependent, [temp.dep.general]
unary operator, [expr.unary.op]
value-dependent, [temp.dep.general]
expression-equivalent, [defns.expression-equivalent]
expression-statement, [stmt.expr], [gram.stmt]
extend, see namespace, extend
extended alignment, see alignment, extended
extended integer type, see type, extended integer
extended signed integer type, see type, extended signed integer
extended unsigned integer type, see type, extended unsigned integer
extern template, see instantiation, explicit
external linkage, see linkage, external


F (incomplete elliptic integrals), [sf.cmath.ellint.1]
fallback-separator, [fs.path.generic]
file system, [fs.general]
file system race, [fs.race.behavior]
file, source, see source file
final overrider, [class.virtual]
final suspend point, [dcl.fct.def.coroutine]
floating-point literal, see literal, floating-point
floating-point promotion, [conv.fpprom]
floating-point type, see type, floating-point
implementation-defined, [basic.fundamental]
floating-point-literal, [lex.fcon], [gram.lex]
floating-point-suffix, [lex.fcon], [gram.lex]
fold-expression, [expr.prim.fold], [gram.expr]
for-range-declaration, [stmt.iter.general], [gram.stmt]
for-range-initializer, [stmt.iter.general], [gram.stmt]
format specification
forward, [forward]
forward progress guarantees
concurrent, [intro.progress]
delegation of, [intro.progress]
weakly parallel, [intro.progress]
forwarding reference, []
fractional-constant, [lex.fcon], [gram.lex]
free store, see also new, see also delete, []
freestanding implementation, see implementation, freestanding
access specifier and, [class.friend]
class access and, [class.friend]
inheritance and, [class.friend]
local class and, [class.friend]
template and, [temp.friend]
virtual and, [class.virtual]
friend function
access and, [class.friend]
linkage of, [class.friend]
member function and, [class.friend]
nested class, [class.nest]
full-expression, [intro.execution]
function, see also friend function, see also member function, see also inline function, see also virtual function
addressable, [namespace.std]
conversion, [class.conv.fct]
deferred, [futures.async]
definition, [basic.def.odr]
handler of type, [except.handle]
immediate, [dcl.constexpr]
inline, [dcl.inline]
linkage specification overloaded, []
named by expression or conversion, [basic.def.odr]
needed for constant evaluation, [expr.const]
non-template, [dcl.fct]
overload resolution and, [over.match.funcs.general]
overloaded, see overloading
parameter of type, [dcl.fct]
pointer to member, [expr.mptr.oper]
program semantics affected by the existence of a function definition, [temp.inst]
replacement, [defns.replacement]
template parameter of type, [temp.param]
virtual function call, []
virtual member, [derived.classes]
function argument, see argument
function call, []
recursive, []
function call operator
overloaded, []
function call operator function, see operator function, function call
function parameter, see parameter
function parameter pack, [temp.variadic]
function parameter scope, see scope, function parameter
function pointer type, [basic.compound]
function return, see return
function return type, see return type
function-definition, [dcl.fct.def.general], [gram.dcl]
function-like macro, see macro, function-like
function-local predefined variable, see variable, function-local predefined
function-specifier, [dcl.fct.spec], [gram.dcl]
function-try-block, [except.pre], [gram.except]
functionally equivalent
expressions, []
template-heads, []
fundamental alignment, see alignment, fundamental
fundamental type, [basic.fundamental]
destructor and, [class.dtor]
fundamental type conversion, see conversion, user-defined
shared state, [futures.state]


generated destructor, see destructor, default
generic parameter type placeholder, []
global module, see module, global
global module fragment, []
global namespace, see namespace, global
global scope, see scope, global
global-module-fragment, [], [gram.module]
glvalue, [basic.lval]
grammar, [gram.general]
regular expression, [re.grammar]
group-part, [cpp.pre], [gram.cpp]


(Hermite polynomials), [sf.cmath.hermite]
h-char-sequence, [lex.header], [gram.lex]
h-pp-tokens, [cpp.cond], [gram.cpp]
h-preprocessing-token, [cpp.cond], [gram.cpp]
happens after, [intro.races]
happens before, [intro.races]
has-attribute-expression, [cpp.cond], [gram.cpp]
has-include-expression, [cpp.cond], [gram.cpp]
instantiation restrictions, [unord.hash]
hash function, [unord.req.general]
header unit, [module.import]
preprocessing, [cpp.import]
header-name, [lex.header], [gram.lex]
header-name-tokens, [cpp.cond], [gram.cpp]
heap with respect to comp and proj, [alg.heap.operations.general]
Hermite polynomials , [sf.cmath.hermite]
hexadecimal-digit, [lex.icon], [gram.lex]
hexadecimal-digit-sequence, [lex.icon], [gram.lex]
hexadecimal-escape-sequence, [lex.ccon], [gram.lex]
hexadecimal-floating-point-literal, [lex.fcon], [gram.lex]
hexadecimal-fractional-constant, [lex.fcon], [gram.lex]
hexadecimal-literal, [lex.icon], [gram.lex]
hexadecimal-prefix, [lex.icon], [gram.lex]
high-order bit, [intro.memory]
hosted implementation, see implementation, hosted


(Bessell functions), [sf.cmath.cyl.bessel.i]
id-expression, []
atomic constraints, see atomic constraint, identical
identifier, [], [gram.lex]
identifier-continue, [], [gram.lex]
identifier-list, [cpp.pre], [gram.cpp]
identifier-start, [], [gram.lex]
if-section, [cpp.pre], [gram.cpp]
ill-formed program, see program, ill-formed
immediate function, see function, immediate
immediate function context, [expr.const]
immediate invocation, [expr.const]
immediate scope, see scope, immediate
immediate subexpression, [intro.execution]
implementation limits, see limits, implementation
implementation-defined behavior, see behavior, implementation-defined
implementation-generated, [basic.def]
implicit conversion, see conversion, implicit
implicit conversion sequence, see conversion sequence, implicit
implicit object parameter, [over.match.funcs.general]
implicit-lifetime class, see class, implicit-lifetime
implicit-lifetime type, see type, implicit-lifetime
implicitly movable entity, see entity, implicitly movable
implicitly-declared default constructor, see constructor, default, [class.default.ctor]
implied object argument, [over.match.funcs.general]
implicit conversion sequences, [over.match.funcs.general]
non-static member function and, [over.match.funcs.general]
importable C++ library headers, see C++ library headers, importable
importable header, see header, importable
inclusive-or-expression, [expr.or], [gram.expr]
incomplete, [expr.add]
incompletely-defined object type, see object type, incompletely-defined
increment operator
increment operator function, see operator function, increment
indeterminate value, [basic.indet], see value, indeterminate
indeterminately sequenced, [intro.execution]
indirect base class, see base class, indirect
indirection, [expr.unary.op]
inheritance, [class.derived.general]
using-declaration and, [namespace.udecl]
init-declarator, [dcl.decl.general], [gram.dcl]
init-declarator-list, [dcl.decl.general], [gram.dcl]
init-statement, [stmt.pre], [gram.stmt]
initial suspend point, [dcl.fct.def.coroutine]
initialization, [basic.start.static], [dcl.init.general]
aggregate, [dcl.init.aggr]
array of class objects, [dcl.init.aggr], [class.expl.init]
automatic, [stmt.dcl]
base class, [class.base.init]
by inherited constructor, [class.inhctor.init]
character array, [dcl.init.string]
const member, [class.base.init]
default constructor and, [class.init.general]
definition and, [dcl.pre]
dynamic block-scope, [stmt.dcl]
dynamic non-block, [basic.start.dynamic]
jump past, [stmt.dcl]
list-initialization, [dcl.init.list]
local static, [stmt.dcl]
local thread_­local, [stmt.dcl]
member function call during, [class.base.init]
member object, [class.base.init]
order of base class, [class.base.init]
order of member, [class.base.init]
order of virtual base class, [class.base.init]
overloaded assignment and, [class.expl.init]
parameter, []
reference member, [class.base.init]
static and thread, [basic.start.static]
static member, []
vacuous, []
virtual base class, [class.copy.ctor]
pack expansion, [class.base.init]
scope of member, [class.base.init]
temporary and declarator, [class.temporary]
initializer-clause, [dcl.init.general], [gram.dcl]
initializer-list, [dcl.init.general], [gram.dcl]
initializer-list constructor, [dcl.init.list]
initializing declaration, [dcl.init.general]
injected-class-name, [class.pre]
inline function, [dcl.inline], see function, inline
inline namespace, see namespace, inline
inline namespace set, [namespace.def.general]
inline variable, see variable, inline
explicit, [temp.explicit]
point of, [temp.point]
template implicit, [temp.inst]
instantiation context, [module.context]
instantiation units, [lex.phases]
integer literal, see literal, integer
integer type, [basic.fundamental]
integer-class type, see type, integer-class
integer-literal, [lex.icon], [gram.lex]
integer-suffix, [lex.icon], [gram.lex]
integral constant expression, see expression, integral constant
integral promotion, [conv.prom]
integral type, [basic.fundamental]
implementation-defined sizeof, [basic.fundamental]
inter-thread happens before, [intro.races]
interface dependency, [module.import]
internal linkage, see linkage, internal
invalid iterator, see iterator, invalid
invalid pointer value, see value, invalid pointer
invocation sequence, [stacktrace.general]


(spherical Bessel functions), [sf.cmath.sph.bessel]
(Bessell functions), [sf.cmath.cyl.bessel.j]


K (complete elliptic integrals), [sf.cmath.comp.ellint.1]
(Bessell functions), [sf.cmath.cyl.bessel.k]
key parameter, see parameter, key


(Laguerre polynomials), [sf.cmath.laguerre]
(associated Laguerre polynomials), [sf.cmath.assoc.laguerre]
labeled-statement, [stmt.label], [gram.stmt]
language linkage, []
lattice, see DAG, see subobject
bit-field, [class.bit]
layout-compatible, [basic.types.general]
enumeration, [dcl.enum]
layout-compatible type, [basic.types.general]
left shift
undefined, [expr.shift]
left shift operator, see operator, left shift
Legendre functions , [sf.cmath.sph.legendre]
Legendre polynomials
lexical conventions, see conventions, lexical
library clauses, [intro.structure]
lifetime, []
implementation, [defns.impl.limits]
line number, [cpp.line]
line splicing, [lex.phases]
linkage, [basic.pre], [], []
const and, []
implementation-defined object, []
inline and, []
internal, []
module, []
static and, []
linkage specification, see specification, linkage
linkage-specification, [], [gram.dcl]
list-initialization, [dcl.init.list]
literal, [lex.literal], [expr.prim.literal]
base of integer, [lex.icon]
boolean, [lex.bool]
char16_­t, [lex.ccon]
char32_­t, [lex.ccon]
char8_­t, [lex.ccon]
character, [lex.ccon]
non-encodable, [lex.ccon]
ordinary, [lex.ccon]
UTF-16, [lex.ccon]
UTF-32, [lex.ccon]
UTF-8, [lex.ccon]
float, [lex.fcon]
floating-point, [lex.fcon]
integer, [lex.icon]
long double, [lex.fcon]
multicharacter, [lex.ccon]
narrow-character, [lex.string]
operator, [over.literal]
template, [over.literal]
template numeric, [over.literal]
template string, [over.literal]
pointer, [lex.nullptr]
string, [lex.string]
char16_­t, [lex.string]
char32_­t, [lex.string]
narrow, [lex.string]
ordinary, [lex.string]
undefined change to, [lex.string]
UTF-16, [lex.string]
UTF-32, [lex.string]
suffix identifier, [over.literal]
type of character, [lex.ccon]
type of floating-point, [lex.fcon]
type of integer, [lex.icon]
unsigned, [lex.icon]
user-defined, [lex.ext]
literal type, see type, literal
literal-operator-id, [over.literal], [gram.over]
living dead
local class, see class, local
member function in, [class.mfct]
local entity, see entity, local
local scope, see scope, block
local variable
destruction of, [stmt.jump.general]
local_­iterator, [unord.req.general]
locale-specific behavior, see behavior, locale-specific
locale-specific form
format string, [format.string.std]
lock-free execution, [intro.progress]
logical-and-expression, [expr.log.and], [gram.expr]
logical-or-expression, [expr.log.or], [gram.expr]
long-long-suffix, [lex.icon], [gram.lex]
long-suffix, [lex.icon], [gram.lex]
class member, [class.qual]
elaborated type specifier, [basic.lookup.elab]
namespace aliases and, [basic.lookup.udir]
unqualified name, [basic.lookup.unqual]
using-directives and, [basic.lookup.udir]
low-order bit, [intro.memory]
lvalue reference, [dcl.ref]
Lvalue-Callable, [func.wrap.func.general]


active, [cpp.import]
argument substitution, [cpp.subst]
definition, [cpp.import]
point of definition, [cpp.import]
point of import, [cpp.import]
point of undefinition, [cpp.import]
pragma operator, [cpp.pragma.op]
predefined, [cpp.predefined]
replacement list, [cpp.replace.general]
rescanning and replacement, [cpp.rescan]
scope of definition, [cpp.scope]
main function, [basic.start.main]
implementation-defined linkage of, [basic.start.main]
implementation-defined parameters to, [basic.start.main]
parameters to, [basic.start.main]
make progress
make-unsigned-like-t, [ranges.syn]
manifestly constant-evaluated, [expr.const]
mathematical special functions, [sf.cmath.general]
mem-initializer-id, [class.base.init], [gram.class]
mem-initializer-list, [class.base.init], [gram.class]
anonymous union, [class.union.anon]
class static, []
default initializer, [class.mem.general]
template and static, [temp.static]
member access operator
overloaded, [over.ref]
member candidate, [over.match.oper]
member data
member of the current instantiation, see current instantiation, member of the
member pointer to, see pointer to member
member subobject, [intro.object]
member-declaration, [class.mem.general], [gram.class]
member-declarator, [class.mem.general], [gram.class]
member-declarator-list, [class.mem.general], [gram.class]
member-specification, [class.mem.general], [gram.class]
memory location, [intro.memory]
memory management, see new, see delete
memory model, [intro.memory]
modifiable, [basic.lval]
modification order, [intro.races]
module, [module.unit]
exported, [module.import]
reserved name of, [module.unit]
module implementation unit, [module.unit]
module interface unit, [module.unit]
module partition, [module.unit]
module unit, [module.unit]
module unit purview, see purview, module unit
module-declaration, [module.unit], [gram.module]
module-file, [cpp.pre], [gram.cpp]
module-import-declaration, [module.import], [gram.module]
module-name-qualifier, [module.unit], [gram.module]
module-partition, [module.unit], [gram.module]
more constrained, [temp.constr.order]
more cv-qualified, [basic.type.qualifier]
most derived class, [intro.object]
most derived object, [intro.object]
bit-field, [intro.object]
zero size subobject, [intro.object]
move, [forward]
multibyte character, see character, multibyte
multicharacter literal, see literal, multicharacter
multiple inheritance, [class.derived.general], [class.mi]
virtual and, [class.virtual]
multiple threads, see threads, multiple
multiplicative-expression, [expr.mul], [gram.expr]


(spherical Neumann functions), [sf.cmath.sph.neumann]
(Neumann functions), [sf.cmath.cyl.neumann]
name class, see class name
named module, see module, named
named-namespace-definition, [namespace.def.general], [gram.dcl]
namespace scope, see scope, namespace
namespace-alias, [namespace.alias], [gram.dcl]
namespace-alias-definition, [namespace.alias], [gram.dcl]
namespace-definition, [namespace.def.general], [gram.dcl]
narrow character type, see type, narrow character
narrowing conversion, see conversion, narrowing
native encoding, [fs.path.type.cvt]
native pathname format, [fs.class.path.general]
necessarily reachable, see reachable, necessarily
exception specification, [except.spec]
needed for constant evaluation, [expr.const]
nested class, see class, nested
local class, [class.local]
nested within, [intro.object]
nested-name-specifier, [], [gram.expr]
nested-namespace-definition, [namespace.def.general], [gram.dcl]
nested-requirement, [expr.prim.req.nested], [gram.expr]
new-declarator, [], [gram.expr]
new-expression, [], [gram.expr]
placement, []
new-extended alignment, see alignment, new-extended
new-initializer, [], [gram.expr]
new-placement, [], [gram.expr]
new-type-id, [], [gram.expr]
no linkage, []
nodeclspec-function-declaration, [dcl.pre], [gram.dcl]
nodiscard call, see call, nodiscard
nodiscard type, see type, nodiscard
noexcept-expression, [expr.unary.noexcept], [gram.expr]
noexcept-specifier, [except.spec], [gram.except]
non-initialization odr-use, see odr-use, non-initialization
non-member candidate, [over.match.oper]
non-shared lock, see lock, non-shared
non-static data member, see data member, non-static
non-static member, see member, non-static
non-static member function, see member function, non-static
non-template function, see function, non-template
non-throwing exception specification, [except.spec]
non-virtual base class, see base class, non-virtual
nonzero-digit, [lex.icon], [gram.lex]
noptr-abstract-declarator, [], [gram.dcl]
noptr-abstract-pack-declarator, [], [gram.dcl]
noptr-declarator, [dcl.decl.general], [gram.dcl]
noptr-new-declarator, [], [gram.expr]
normal distributions, [rand.dist.norm]
normal form
normative references, see references, normative
syntax, [syntax]
null character, see character, null
null member pointer conversion, see conversion, null member pointer
null pointer conversion, see conversion, null pointer
null pointer value, see value, null pointer
null statement, see statement, null
null wide character, see wide-character, null
numeric type, see type, numeric
numeric-escape-sequence, [lex.ccon], [gram.lex]
numeric_­limits, [limits.syn]
specializations for arithmetic types, [basic.fundamental]


object, see also object model, [basic.pre], [intro.object]
byte copying and, [basic.types.general]
callable, [func.def]
complete, [intro.object]
const volatile, [basic.type.qualifier]
definition, [basic.def.odr]
destructor and placement of, [class.dtor]
destructor static, [basic.start.term]
implicit creation, [intro.object]
linkage specification, []
local static, []
nested within, [intro.object]
nonzero size, [intro.object]
providing storage for, [intro.object]
suitable created, [intro.object]
zero size, [intro.object]
object class, see class object
object expression, [expr.ref], [expr.mptr.oper]
object lifetime, []
object model, [intro.object]
object pointer type, [basic.compound]
object temporary, see temporary
object type, [basic.types.general]
incompletely-defined, [basic.types.general]
object-like macro, see macro, object-like
observable behavior, see behavior, observable
octal-digit, [lex.icon], [gram.lex]
octal-escape-sequence, [lex.ccon], [gram.lex]
octal-literal, [lex.icon], [gram.lex]
odr-usable, [basic.def.odr]
odr-use, [basic.def.odr]
non-initialization, [basic.start.dynamic]
one-definition rule, [basic.def.odr]
opaque-enum-declaration, [dcl.enum], [gram.dcl]
operating system dependent, [fs.conform.os]
operator, [lex.operators], [over.oper.general]
addition, [expr.add]
additive, [expr.add]
bitwise AND, [expr.bit.and]
bitwise exclusive OR, [expr.xor]
bitwise inclusive OR, [expr.or]
class member access, [expr.ref]
constexpr-compatible, []
implicitly defined, []
conditional expression, [expr.cond]
copy assignment, see assignment operator, copy
division, [expr.mul]
equality, [expr.eq]
defaulted, [class.eq]
greater than, [expr.rel]
greater than or equal to, [expr.rel]
implementation, [over.oper.general]
inequality, [expr.eq]
left shift, [expr.shift]
less than, [expr.rel]
less than or equal to, [expr.rel]
logical AND, [expr.log.and]
logical OR, [expr.log.or]
move assignment, see assignment operator, move
multiplication, [expr.mul]
multiplicative, [expr.mul]
pointer to member, [expr.mptr.oper]
precedence of, [expr.pre]
remainder, [expr.mul]
right shift, [expr.shift]
side effects and comma, [expr.comma]
side effects and logical AND, [expr.log.and]
side effects and logical OR, [expr.log.or]
spaceship, [expr.spaceship]
subtraction, [expr.add]
three-way comparison, [expr.spaceship]
operator delete
operator delete, see also delete, [], [expr.delete]
operator function, see function, operator
class member access, [over.ref]
decrement, []
function call, []
increment, []
prefix unary, [over.unary]
simple assignment, [over.ass]
subscripting, [over.sub]
three-way comparison, [over.binary.general]
operator new, see also new, []
operator overloading, see overloading, operator
operator use
scope resolution, []
operator-function-id, [over.oper.general], [gram.over]
operator-or-punctuator, [lex.operators], [gram.lex]
built-in, [expr.pre]
optimization of temporary, see temporary, elimination of
optional object, [optional.general]
order of evaluation in expression, see expression, order of evaluation of
order of execution
base class constructor, [class.default.ctor]
base class destructor, [class.dtor]
constructor and array, [class.init.general]
constructor and static data members, [class.expl.init]
destructor, [class.dtor]
destructor and array, [class.dtor]
member constructor, [class.default.ctor]
member destructor, [class.dtor]
function template partial, see template, function, partial ordering
ordinary character type, see type, ordinary character
over-aligned type, see type, over-aligned
overflow, [expr.pre]
undefined, [expr.pre]
overload resolution, [over.pre]
overloaded function, see overloading
overloaded operator, see overloading, operator
inheritance of, [over.oper.general]
overloading, [dcl.fct], [], [over], []
address of overloaded function, [over.over]
assignment operator, [over.ass]
binary operator, [over.binary.general]
built-in operators and, [over.built]
candidate functions, [over.match.funcs.general]
example of, [over.pre]
function call operator, []
member access operator, [over.ref]
resolution, [over.match.general]
best viable function, []
better viable function, []
function call syntax, []
function template, [temp.over]
implicit conversions and, []
viable functions, [over.match.viable]
subscripting operator, [over.sub]
unary operator, [over.unary]
user-defined literal, [over.literal]
using directive and, [namespace.udir]
using-declaration and, [namespace.udecl]
floating-point, [cmplx.over]


(Legendre polynomials), [sf.cmath.legendre]
(associated Legendre polynomials), [sf.cmath.assoc.legendre]
pack expansion, [temp.variadic]
padding bits, [basic.types.general]
tuple interface to, [pairs.general]
parallel algorithm, [algorithms.parallel.defns]
parallel forward progress guarantees, [intro.progress]
parameter declaration, [basic.def]
parameter list
parameter mapping, [temp.constr.atomic]
parameter-declaration, [dcl.fct], [gram.dcl]
parameter-declaration-clause, [dcl.fct], [gram.dcl]
parameter-declaration-list, [dcl.fct], [gram.dcl]
parameter-type-list, [dcl.fct]
parameterized type, see template
parameters-and-qualifiers, [dcl.decl.general], [gram.dcl]
parent directory, [fs.general]
parent scope, see scope, parent
past-the-end iterator, see iterator, past-the-end
path equality, [fs.path.nonmember]
pathname resolution, [fs.class.path.general]
perfect forwarding call wrapper, [func.require]
permissible types, see types, permissible
phase completion step, [thread.barrier.class]
phase synchronization point, see barrier, phase synchronization point
phases of translation, see translation, phases
Π (complete elliptic integrals), [sf.cmath.comp.ellint.3]
Π (incomplete elliptic integrals), [sf.cmath.ellint.3]
piecewise construction, [pairs.pair]
placeholder type, see type, placeholder
placeholder type deduction, []
placeholder-type-specifier, [], [gram.dcl]
placement new-expression, see new-expression, placement
plain lock-free atomic operation, [support.signal]
point of
macro definition, see macro, point of definition
macro import, see macro, point of import
macro undefinition, see macro, point of undefinition
pointer, see also void*
composite pointer type, [expr.type]
strict total order, [defns.order.ptr]
pointer literal, see literal, pointer
pointer past the end of, [basic.compound]
pointer to, [basic.compound]
pointer-interconvertible, [basic.compound]
pointer-literal, [lex.nullptr], [gram.lex]
pointer-to-member, [basic.compound]
Poisson distributions, [rand.dist.pois]
polymorphic class, see class, polymorphic
pool resource classes, [mem.res.pool.overview]
POSIX, [intro.refs]
extended regular expressions, [re.synopt]
regular expressions, [re.synopt]
postfix ++, []
postfix ++ and --
overloading, []
postfix --, []
postfix-expression, [], [gram.expr]
potential results, [basic.def.odr]
potentially concurrent, [intro.races]
potentially conflict, [basic.scope.scope]
potentially constant evaluated, [expr.const]
potentially evaluated, [basic.def.odr]
potentially invoked, [class.dtor]
potentially-constant, [expr.const]
potentially-overlapping subobject, [intro.object]
exception specification, [except.spec]
expression, [except.spec]
pp-global-module-fragment, [cpp.pre], [gram.cpp]
pp-private-module-fragment, [cpp.pre], [gram.cpp]
pp-tokens, [cpp.pre], [gram.cpp]
precedence of operator, see operator, precedence of
preferred-separator, [fs.path.generic]
prefix ++, [expr.pre.incr]
prefix ++ and --
overloading, []
prefix --, [expr.pre.incr]
prefix unary operator function, see operator function, prefix unary
preprocessing, [cpp.pre]
preprocessing directive, [cpp], [cpp.pre]
conditional inclusion, [cpp.cond]
header inclusion, [cpp.include]
import, [cpp.import]
line control, [cpp.line]
macro replacement, see macro, replacement
module, [cpp.module]
pragma, [cpp.pragma]
source-file inclusion, [cpp.include]
preprocessing-file, [cpp.pre], [gram.cpp]
preprocessing-op-or-punc, [lex.operators], [gram.lex]
preprocessing-operator, [lex.operators], [gram.lex]
preprocessing-token, [lex.pptoken], [gram.lex]
primary equivalence class, [defns.regex.primary.equivalence.class]
primary module interface unit, [module.unit]
primary template, see template, primary
primary-expression, [expr.prim], [gram.expr]
private-module-fragment, [module.private.frag], [gram.module]
program execution, [intro.abstract], [intro.execution]
abstract machine, [intro.abstract]
as-if rule, see as-if rule
program semantics
affected by the existence of a variable or function definition, [temp.inst]
projection, [defns.projection]
promise object, [dcl.fct.def.coroutine]
promise type, see coroutine, promise type
promoted integral type, [over.built]
bool to int, [conv.prom]
default argument promotion, []
floating-point, [conv.fpprom]
integral, [conv.prom]
prospective destructor, see destructor, prospective
prototype parameter
provides storage, [intro.object]
prvalue, [basic.lval]
pseudo-destructor, []
ptr-abstract-declarator, [], [gram.dcl]
ptrdiff_­t, [expr.add]
implementation-defined type of, [expr.add]
punctuator, [lex.operators]
global module, [module.unit]
module unit, [module.unit]
named module, [module.unit]


q-char-sequence, [lex.header], [gram.lex]
qualification-combined type, see type, qualification-combined
qualification-decomposition, [conv.qual]
qualified name, see name, qualified
qualified-namespace-specifier, [namespace.alias], [gram.dcl]


r-char-sequence, [lex.string], [gram.lex]
random number distribution
requirements, [rand.req.dist]
random number distributions
Bernoulli, [rand.dist.bern]
random number engine
requirements, [rand.req.eng]
with predefined parameters, [rand.predef]
random number engine adaptor
with predefined parameters, [rand.predef]
random number generation, [rand.general]
distributions, [rand.dist]
predefined engines and adaptors, [rand.predef]
requirements, [rand.req]
synopsis, [rand.synopsis]
utilities, [rand.util]
random number generator, see uniform random bit generator
raw string literal, [lex.string]
declaration, [module.reach]
translation unit, [module.reach]
translation unit, [module.reach]
reference, [basic.compound]
assignment to, [expr.ass]
call by, []
forwarding, []
null, [dcl.ref]
reference collapsing, [dcl.ref]
reference lifetime, []
reference-compatible, [dcl.init.ref]
normative, [intro.refs]
register storage class, [diff.cpp14.dcl.dcl]
regular expression, [re]
grammar, [re.grammar]
requirements, [re.req]
regular expression traits, [re.grammar]
requirements, [re.req], [re.traits]
transform_­primary, [re.req], [re.grammar]
reified object, see object, reified
relational operator function, see operator function, relational
relational-expression, [expr.rel], [gram.expr]
relative path, see path, relative
relative-path, [fs.path.generic]
release sequence, [intro.races]
remainder operator, see operator, remainder
remote time zone database, []
replacement field
replacement-list, [cpp.pre], [gram.cpp]
represents the address, [basic.compound]
requirement-parameter-list, [expr.prim.req.general], [gram.expr]
requirements, [structure.requirements]
random number distribution, [rand.req.dist]
random number engine, [rand.req.eng]
regular expression traits, [re.req], [re.traits]
seed sequence, [rand.req.seedseq]
uniform random bit generator, [rand.req.urng]
unordered associative container, [unord.req.general]
requires-clause, [temp.pre], [gram.temp]
requires-expression, [expr.prim.req.general], [gram.expr]
rescanning and replacement, see macro, rescanning and replacement
reserved identifier, []
resolution, see overloading, resolution
restriction, [res.on.arguments], [res.on.macro.definitions], [res.on.exception.handling], [depr.res.on.required]
address of bit-field, [class.bit]
anonymous union, [class.union.anon]
bit-field, [class.bit]
destructor, [class.dtor]
extern, []
local class, [class.local]
operator overloading, [over.oper.general]
overloading, [over.oper.general]
pointer to bit-field, [class.bit]
reference, [dcl.ref]
static, []
static member local class, [class.local]
glvalue, [basic.lval]
prvalue, [basic.lval]
result object, [basic.lval]
return statement, see return
return type, [dcl.fct]
covariant, [class.virtual]
return-type-requirement, [expr.prim.req.compound], [gram.expr]
reversible container, see container, reversible
rewritten candidate, [over.match.oper]
right shift operator, see operator, right shift
root-directory, [fs.path.generic]
rounding, [conv.fpint]
rvalue, [basic.lval]
lvalue conversion to, see conversion, lvalue-to-rvalue, [diff.expr]
rvalue reference, [dcl.ref]


s-char-sequence, [lex.string], [gram.lex]
sampling distributions, [rand.dist.samp]
scalar type, see type, scalar
scope, [intro.scope], [basic.pre], [basic.scope], [basic.scope.scope], [dcl.pre]
anonymous union at namespace, [class.union.anon]
declarations and, see locus
destructor and exit from, [stmt.jump.general]
enumeration, [basic.scope.enum]
function parameter, [basic.scope.param]
function prototype, see scope, function parameter
iteration-statement, [stmt.iter.general]
macro definition, see macro, scope of definition
name lookup and, see lookup, name
selection-statement, []
template parameter, [basic.scope.temp]
scope resolution operator, see operator, scope resolution
scoped enumeration, see enumeration, scoped
secondary comparison operator, []
seed sequence, [rand.req.seedseq]
requirements, [rand.req.seedseq]
selected destructor, see destructor, selected
selection-statement, [], [gram.stmt]
class member, [expr.ref]
separate compilation, see compilation, separate
separate translation, see compilation, separate
sequenced after, [intro.execution]
sequenced before, [intro.execution]
sequencing operator, see operator, comma
shared state, see future, shared state
shift operator
shift-expression, [expr.shift], [gram.expr]
evaluation, see evaluation, signal-safe
forward, [forward]
initializer_­list functions, [support.initlist.general]
memmove, [cstring.syn]
move, [forward]
move_­if_­noexcept, [forward]
numeric_­limits members, [numeric.limits.members]
quick_­exit, [support.start.term]
type traits, [meta.general]
signed integer representation
ones' complement, [expr.unary.op]
signed integer type, see type, signed integer
signed-integer-class type, see type, signed-integer-class
signed-integer-like, [iterator.concept.winc]
significand, [lex.fcon]
similar types, [conv.qual]
simple assignment operator function, see operator function, simple assignment
simple call wrapper, [func.require]
simple-declaration, [dcl.pre], [gram.dcl]
simple-escape-sequence, [lex.ccon], [gram.lex]
simple-escape-sequence-char, [lex.ccon], [gram.lex]
simple-requirement, [expr.prim.req.simple], [gram.expr]
simple-template-id, [temp.names], [gram.temp]
simple-type-specifier, [dcl.type.simple], [gram.dcl]
simply happens before, [intro.races]
size-suffix, [lex.icon], [gram.lex]
size_­t, [expr.sizeof]
smart pointers, [util.smartptr.weak.bad]
source file character, see character, source file
special member function, see constructor, see assignment operator, see destructor
eligible, [special]
specialization, [temp.spec.general]
class template partial, [temp.spec.partial.general]
declared, [temp.inst]
program-defined, [defns.prog.def.spec]
template explicit, [temp.expl.spec]
linkage, []
extern, []
implementation-defined, []
nesting, []
template argument, [temp.arg.explicit]
C standard library exception, [res.on.exception.handling]
specifier access, see access specifier
spherical harmonics , [sf.cmath.sph.legendre]
stack unwinding, [except.ctor]
stacktrace entry, [stacktrace.general]
structure of, [intro.structure]
standard integer type, see type, standard integer
standard signed integer type, see type, standard signed integer
standard unsigned integer type, see type, standard unsigned integer
standard-layout class, see class, standard-layout
standard-layout struct, see struct, standard-layout
standard-layout type, see type, standard-layout
standard-layout union, see union, standard-layout
state entity, [func.def]
statement-seq, [stmt.block], [gram.stmt]
static data member, see data member, static
static initialization, see initialization, static
static member, see member, static
static member function, see member function, static
static storage duration, see storage duration, static
static type, see type, static
static_assert, [dcl.pre]
static_assert-declaration, [dcl.pre], [gram.dcl]
STATICALLY-WIDEN, [time.general]
storage class, [basic.pre]
storage management, see new, see delete
storage-class-specifier, [], [gram.dcl]
arbitrary-positional, []
distinct, [lex.string]
null terminator, [basic.string.general]
null-terminated byte, see ntbs
null-terminated character type, [defns.ntcts]
null-terminated multibyte, see ntmbs
type of, [lex.string]
string literal, see literal, string
string-literal, [lex.string], [gram.lex]
stringize, see # operator
stringizing argument, [cpp.stringize]
strongly happens before, [intro.races]
standard-layout, [class.prop]
structural type, see type, structural
structure tag, see class name
structured binding, [dcl.struct.bind]
structured binding declaration, [dcl.pre], [dcl.struct.bind]
regular expression, [defns.regex.subexpression]
subexpression, [intro.execution]
subnormal number, see number, subnormal
subscripting operator
overloaded, [over.sub]
subscripting operator function, see operator function, subscripting
subsequence rule
overloading, [over.ics.rank]
substatement, [stmt.pre]
substitutability, [cmp.categories.pre]
implementation-defined pointer, [expr.add]
subtraction operator, see operator, subtraction
suitable created object, see object, suitable created
compatibility with ISO C, [diff.iso.general]
compatibility with ISO C++ 2003, [diff.cpp03.general]
compatibility with ISO C++ 2011, [diff.cpp11.general]
compatibility with ISO C++ 2014, [diff.cpp14.general]
compatibility with ISO C++ 2017, [diff.cpp17.general]
compatibility with ISO C++ 2020, [diff.cpp20.general]
surrogate call function, []
swappable with, [swappable.requirements]
synchronize with, [intro.races]
synonym, [namespace.alias]
type name as, [dcl.typedef]
class member, [expr.ref]
synthesized three-way comparison, see three-way comparison, synthesized


target object, [func.def]
target scope, see scope, target
template, [temp], [temp.pre]
deducible arguments of, [over.match.class.deduct]
function, [temp.fct.spec.general]
abbreviated, [dcl.fct]
key parameter of, [concept.booleantestable]
partial ordering, [temp.func.order]
member function, [temp.mem.func]
static data member, [temp.pre]
variable, [temp.pre]
template instantiation, [temp.spec.general]
template name
linkage of, [temp.pre]
template parameter, [basic.def]
template parameter object, [temp.param]
template parameter pack, [temp.variadic]
template parameter scope, see scope, template parameter
template-argument, [temp.names], [gram.temp]
default, [temp.param]
template-argument-equivalent, [temp.type]
template-argument-list, [temp.names], [gram.temp]
template-declaration, [temp.pre], [gram.temp]
template-head, [temp.pre], [gram.temp]
template-name, [temp.names], [gram.temp]
template-parameter, [temp.param], [gram.temp]
template-parameter-list, [temp.pre], [gram.temp]
templated, [temp.pre]
temporary, [class.temporary]
constructor for, [class.temporary]
destruction of, [class.temporary]
destructor for, [class.temporary]
implementation-defined generation of, [class.temporary]
order of destruction of, [class.temporary]
terminal name, see name, terminal
text-line, [cpp.pre], [gram.cpp]
thread of execution, [intro.multithread.general]
thread storage duration, see storage duration, thread
three-way comparison
synthesized, [class.spaceship]
three-way comparison operator function, see operator function, three-way comparison
throw-expression, [expr.throw], [gram.expr]
to-unsigned-like, [ranges.syn]
token, [lex.token]
alternative, [lex.digraph]
directive-introducing, [cpp.pre]
preprocessing, [lex.pptoken]
trailing requires-clause, see requires-clause, trailing
trailing-return-type, [dcl.decl.general], [gram.dcl]
regular expression traits, [re.req], [re.grammar]
phases, [lex.phases]
separate, see compilation, separate
translation unit, [lex.separate], []
name and, [basic.pre]
translation-unit, [], [gram.basic]
transparently replaceable, []
trigraph sequence, [diff.cpp14.lex]
trivial class, see class, trivial
trivial type, see type, trivial
trivially copyable class, see class, trivially copyable
trivially copyable type, see type, trivially copyable
truncation, [conv.fpint]
entity, []
value or object, []
and pair, [pairs.general]
type, [basic.pre], [basic.types.general]
allocated, []
arithmetic, [basic.fundamental]
promoted, [over.built]
callable, [func.def]
character container, [defns.character.container]
class and, [class.pre]
destination, [dcl.init.general]
example of incomplete, [basic.types.general]
extended integer, [basic.fundamental]
extended signed integer, [basic.fundamental]
extended unsigned integer, [basic.fundamental]
floating-point, [basic.fundamental]
fundamental, [basic.fundamental]
implementation-defined sizeof, [basic.fundamental]
implicit-lifetime, [basic.types.general]
incompletely-defined object, [basic.types.general]
long double, [basic.fundamental]
narrow character, [basic.fundamental]
ordinary character, [basic.fundamental]
over-aligned, [basic.align]
polymorphic, [class.virtual]
program-defined, [defns.prog.def.type]
qualification-combined, [conv.qual]
referenceable, [defns.referenceable]
signed char, [basic.fundamental]
signed integer, [basic.fundamental]
signed-integer-class, [iterator.concept.winc]
similar, see similar types
standard integer, [basic.fundamental]
standard signed integer, [basic.fundamental]
standard unsigned integer, [basic.fundamental]
standard-layout, [basic.types.general]
structural, [temp.param]
unsigned char, [basic.fundamental]
unsigned int, [basic.fundamental]
unsigned integer, [basic.fundamental]
unsigned long, [basic.fundamental]
unsigned long long, [basic.fundamental]
unsigned short, [basic.fundamental]
unsigned-integer-class, [iterator.concept.winc]
type checking
argument, []
type concept, see concept, type
type conversion, explicit, see casting
type generator, see template
type name, []
type-constraint, [temp.param], [gram.temp]
context, see context, type-only
lookup, see lookup, type-only
type-parameter, [temp.param], [gram.temp]
type-parameter-key, [temp.param], [gram.temp]
type-specifier-seq, [dcl.type.general], [gram.dcl]
type_­info, [expr.typeid]
function, [dcl.fct]
typedef-name, [dcl.typedef], [gram.dcl]
typename-specifier, [temp.res.general], [gram.temp]
implementation-defined, [type.descriptions.general]


ud-suffix, [lex.ext], [gram.lex]
unary fold, [expr.prim.fold]
unary left fold, [expr.prim.fold]
unary operator
interpretation of, [over.unary]
overloaded, [over.unary]
unary right fold, [expr.prim.fold]
undefined behavior, see behavior, undefined
underlying type, see type, underlying
unevaluated operand, [expr.context]
Unicode required set, [cpp.predefined]
uniform distributions, [rand.dist.uni]
uniform random bit generator
requirements, [rand.req.urng]
union, [class.union.general]
standard-layout, [class.prop]
union-like class, see class, union-like
unique pointer, [unique.ptr.general]
universal character name, [lex.phases]
universal-character-name, [lex.charset], [gram.lex]
unnamed bit-field, see bit-field, unnamed
unnamed class, see class, unnamed
unnamed-namespace-definition, [namespace.def.general], [gram.dcl]
unordered associative containers, [unord.req.general]
equality function, [unord.req.general]
exception safety, [unord.req.except]
hash function, [unord.req.general]
iterator invalidation, [unord.req.general]
lack of comparison functions, [unord.req.general]
element access, []
equivalent keys, [unord.multimap.overview]
equivalent keys, [unord.multiset.overview]
unqualified name, see name, unqualified
unscoped enumeration, see enumeration, unscoped
unsequenced, [intro.execution]
unsigned integer type, see type, unsigned integer
unsigned-integer-class type, see type, unsigned-integer-class
unsigned-integer-like, [iterator.concept.winc]
unsigned-suffix, [lex.icon], [gram.lex]
unspecified behavior, see behavior, unspecified
upstream allocator, [mem.res.pool.overview]
binary operator expression, []
usable candidate, see candidate, usable
usable in constant expressions, [expr.const]
user-defined conversion sequence, see conversion sequence, user-defined
user-defined literal, see literal, user-defined
overloaded, [over.literal]
user-defined-character-literal, [lex.ext], [gram.lex]
user-defined-floating-point-literal, [lex.ext], [gram.lex]
user-defined-integer-literal, [lex.ext], [gram.lex]
user-defined-literal, [lex.ext], [gram.lex]
user-defined-string-literal, [lex.ext], [gram.lex]
user-provided, [dcl.fct.def.default]
uses-allocator construction, []
using-declaration, [namespace.udecl]
using-declaration, [namespace.udecl], [gram.dcl]
using-declarator, [namespace.udecl], [gram.dcl]
using-declarator-list, [namespace.udecl], [gram.dcl]
using-directive, [namespace.udir]
using-directive, [namespace.udir], [gram.dcl]
using-enum-declaration, [enum.udecl], [gram.dcl]
usual arithmetic conversions, see conversion, usual arithmetic
usual deallocation function, []


va-opt-replacement, [cpp.subst], [gram.cpp]
vacuous initialization, see initialization, vacuous
valid but unspecified state, [defns.valid]
valid range, see range, valid
value, [basic.types.general]
call by, []
denormalized, see number, subnormal
invalid pointer, [basic.compound]
null member pointer, [conv.mem]
undefined unrepresentable integral, [conv.fpint]
value category, [basic.lval]
value-initialization, [dcl.init.general]
variable, [basic.pre]
active, [stmt.dcl]
anonymous union, [class.union.anon]
function-local predefined, [dcl.fct.def.general]
indeterminate uninitialized, [dcl.init.general]
inline, [dcl.inline]
needed for constant evaluation, [expr.const]
program semantics affected by the existence of a variable definition, [temp.inst]
variable arguments, [cpp.replace.general]
variable template
definition of, [temp.pre]
variant member, [class.union.anon]
vectorization-unsafe, [algorithms.parallel.defns]
virt-specifier-seq, [class.mem.general], [gram.class]
virtual base class, see base class, virtual
virtual function, see function, virtual
virtual function call, [class.virtual]
constructor and, [class.cdtor]
destructor and, [class.cdtor]
undefined pure, [class.abstract]
visible side effects, see side effects, visible
void, [lex.key], [basic.def.odr], [], [], [], [class.temporary], [basic.types.general], [basic.fundamental], [basic.compound], [basic.type.qualifier], [basic.lval], [expr.type], [conv.ptr], [conv.mem], [], [expr.type.conv], [expr.ref], [expr.dynamic.cast], [expr.static.cast], [expr.reinterpret.cast], [expr.unary.op], [expr.await], [], [expr.delete], [expr.cond], [expr.throw], [expr.const], [stmt.return], [stmt.return.coroutine], [dcl.type.simple], [], [], [dcl.ref], [dcl.mptr], [dcl.array], [dcl.fct], [dcl.fct.def.general], [dcl.attr.nodiscard], [class.conv.fct], [], [over.ics.rank], [temp.param], [temp.arg.nontype], [temp.res.general], [temp.deduct.general], [temp.deduct.type], [except.throw], [except.handle], [structure.specifications], [cmp.common], [concept.swappable], [pointer.traits.functions], [util.smartptr.shared.obs], [func.require], [], [meta.unary.prop], [meta.rel], [meta.trans.ptr], [meta.trans.other], [container.requirements.general], [sequence.reqmts], [associative.reqmts.general], [unord.req.general], [readable.traits], [iterator.traits], [iterator.iterators], [common.iter.types], [rand.req.seedseq], [rand.req.eng], [rand.req.dist], [], [thread.mutex.requirements.mutex.general], [thread.sharedmutex.requirements.general], [gram.dcl], [diff.cpp17.containers], [diff.cpp03.containers], [depr.meta.types]
void&, [dcl.ref]
volatile object, see object, volatile
volatile-qualified, [basic.type.qualifier]


waiting function, see function, waiting
weakly parallel forward progress guarantees, [intro.progress]
well-formed program, see program, well-formed
wide-character, [lex.ccon]
wide-character set
basic execution, [lex.charset]
execution, [lex.charset]
worse conversion sequence, see conversion sequence, worse


xvalue, [basic.lval]


(spherical associated Legendre functions), [sf.cmath.sph.legendre]
yield-expression, [expr.yield], [gram.expr]


division by undefined, [expr.pre]
remainder undefined, [expr.pre]
undefined division by, [expr.mul]
zero-initialization, [dcl.init.general]
zeta functions ζ, [sf.cmath.riemann.zeta]