std::numeri...ts::is_exact(3) C++ Standard Libary std::numeri...ts::is_exact(3) NAME std::numeric_limits::is_exact - std::numeric_limits::is_exact Synopsis static const bool is_exact; (until C++11) static constexpr bool is_exact; (since C++11) The value of std::numeric_limits<T>::is_exact is true for all arithmetic types T that use exact representation. Standard specializations T value of std::numeric_limits<T>::is_ex- act /* non-specialized */ false bool true char true signed char true unsigned char true wchar_t true char8_t (since C++20) true char16_t (since C++11) true char32_t (since C++11) true short true unsigned short true int true unsigned int true long true unsigned long true long long (since C++11) true unsigned long long (since C++11) true float false double false long double false Notes While all fundamental types T for which std::numeric_limits<T>::is_exact == true are integer types, a library may define exact types that are not integers, e.g. a rational arithmetic type representing fractions. See also is_integer identifies integer types [static] (public static member constant) is_signed identifies signed types [static] (public static member constant) is_bounded identifies types that represent a finite set of values [static] (public static member constant) http://cppreference.com 2024.06.10 std::numeri...ts::is_exact(3)
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