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Remove is_callable impl

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This commit is contained in:
Vladislav Oleshko 2022-02-13 14:35:11 +03:00
parent a5ba69f5a4
commit b9dded57e8
1 changed files with 2 additions and 8 deletions
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10
include/crow/utility.h
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@ -258,16 +258,10 @@ namespace crow
struct is_callable
{
template<typename F2, typename... Args2>
static std::true_type __test(decltype(std::declval<F2>()(std::declval<Args2>()...))*)
{
return {};
}
static std::true_type __test(decltype(std::declval<F2>()(std::declval<Args2>()...))*);
template<typename F2, typename... Args2>
static std::false_type __test(...)
{
return {};
}
static std::false_type __test(...);
static constexpr bool value = decltype(__test<F, Args...>(nullptr))::value;
};