tmp/tmpzoxrv1l1/{from.md → to.md}
RENAMED
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unqualified-id:
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identifier
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operator-function-id
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conversion-function-id
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literal-operator-id
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'~'
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'~' decltype-specifier
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template-id
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```
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An *identifier* is an *id-expression*
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declared
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[*Note 1*: For *operator-function-id*s, see [[over.oper]]; for
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*conversion-function-id*s, see [[class.conv.fct]]; for
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*literal-operator-id*s, see [[over.literal]]; for *template-id*s, see
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[[temp.names]]. A *
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denotes
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non-static member function, an *identifier*
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member is transformed to a class member access
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[[class.mfct.non-static]]). — *end note*]
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The
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the
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[[
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unqualified-id:
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identifier
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operator-function-id
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conversion-function-id
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literal-operator-id
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'~' type-name
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'~' decltype-specifier
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template-id
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```
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An *identifier* is only an *id-expression* if it has been suitably
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declared [[dcl.dcl]] or if it appears as part of a *declarator-id*
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[[dcl.decl]]. An *identifier* that names a coroutine parameter refers to
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the copy of the parameter [[dcl.fct.def.coroutine]].
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[*Note 1*: For *operator-function-id*s, see [[over.oper]]; for
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*conversion-function-id*s, see [[class.conv.fct]]; for
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*literal-operator-id*s, see [[over.literal]]; for *template-id*s, see
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[[temp.names]]. A *type-name* or *decltype-specifier* prefixed by `~`
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denotes the destructor of the type so named; see [[expr.prim.id.dtor]].
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Within the definition of a non-static member function, an *identifier*
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that names a non-static member is transformed to a class member access
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expression ([[class.mfct.non-static]]). — *end note*]
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The result is the entity denoted by the identifier. If the entity is a
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local entity and naming it from outside of an unevaluated operand within
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the declarative region where the *unqualified-id* appears would result
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in some intervening *lambda-expression* capturing it by copy
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[[expr.prim.lambda.capture]], the type of the expression is the type of
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a class member access expression [[expr.ref]] naming the non-static data
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member that would be declared for such a capture in the closure object
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of the innermost such intervening *lambda-expression*.
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[*Note 2*: If that *lambda-expression* is not declared `mutable`, the
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type of such an identifier will typically be `const`
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qualified. — *end note*]
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The type of the expression is the type of the result.
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[*Note 3*: If the entity is a template parameter object for a template
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parameter of type `T` [[temp.param]], the type of the expression is
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`const T`. — *end note*]
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[*Note 4*: The type will be adjusted as described in [[expr.type]] if
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it is cv-qualified or is a reference type. — *end note*]
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The expression is an lvalue if the entity is a function, variable,
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structured binding [[dcl.struct.bind]], data member, or template
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parameter object and a prvalue otherwise [[basic.lval]]; it is a
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bit-field if the identifier designates a bit-field.
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[*Example 1*:
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``` cpp
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void f() {
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float x, &r = x;
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[=] {
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decltype(x) y1; // y1 has type float
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decltype((x)) y2 = y1; // y2 has type float const& because this lambda
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// is not mutable and x is an lvalue
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decltype(r) r1 = y1; // r1 has type float&
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decltype((r)) r2 = y2; // r2 has type float const&
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};
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}
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```
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— *end example*]
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