test overloads

Synopses

Declared in <bslstl_sharedptr.h>

SFINAE probe selecting when the functor is callable with ARG.

template<class ARG>
static
FalseType
test(...);

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Overload selected when FUNCTOR is callable with ARG.

template<class ARG>
static
TrueType
test(bsl::enable_if<static_cast<bool>(sizeof static_cast<void>(Util::declval<FUNCTOR>()(Util::declval<ARG>() , 0)))>::type* dummy);

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Return Value

  • FalseType indicating the functor is not callable with ARG

  • TrueType indicating the functor is callable with ARG

Parameters

Name

Description

dummy

unused SFINAE discriminator

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