std::numeri...::is_iec559(3) C++ Standard Libary std::numeri...::is_iec559(3) NAME std::numeric_limits::is_iec559 - std::numeric_limits::is_iec559 Synopsis static const bool is_iec559; (until C++11) static constexpr bool is_iec559; (since C++11) The value of std::numeric_limits<T>::is_iec559 is true for all floating- point types T which fulfill the requirements of IEC 559 (IEEE 754) standard. If std::numeric_limits<T>::is_iec559 is true, then std::numeric_limits<T>::has_infinity, std::numeric_lim- its<T>::has_quiet_NaN, and std::numeric_limits<T>::has_signaling_NaN are also true. Standard specializations T value of std::numeric_lim- its<T>::is_iec559 /* non-specialized */ false bool false char false signed char false unsigned char false wchar_t false char8_t (since C++20) false char16_t (since C++11) false char32_t (since C++11) false short false unsigned short false int false unsigned int false long false unsigned long false long long (since C++11) false unsigned long long (since C++11) false float usually true double usually true long double usually true See also has_infinity identifies floating-point types that can represent the special [static] value "positive infinity" (public static member constant) has_quiet_NaN identifies floating-point types that can represent the special [static] value "quiet not-a-number" (NaN) (public static member constant) has_signaling_NaN identifies floating-point types that can represent the special [static] value "signaling not-a-number" (NaN) (public static member constant) http://cppreference.com 2024.06.10 std::numeri...::is_iec559(3)
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