Tag whether the argument is volatile‐qualified (declared only).

Synopsis

Declared in <bslmf_invokeresult.h>

template<class t_TP>
static
bslmf::Tag<false>
checkVolatile(t_TP& arg);

Description

(Declared but not defined) Return bslmf::Tag<true>() if the argument is volatile‐qualified and bslmf::Tag<false>() otherwise. Note that if t_TP is both const‐ and volatile‐qualified, it will not match volatile t_TP&, hence the need for the const overloads.

Parameters

Name

Description

arg

expression whose volatile qualification is being tested

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