std::numeric_limits<T>::is_iec559 - cppreference.com
From cppreference.com
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(until C++11) | |
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(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_limits<T>::has_quiet_NaN, and std::numeric_limits<T>::has_signaling_NaN are also true.
Standard specializations
T
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value of std::numeric_limits<T>::is_iec559
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/* non-specialized */
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false
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bool
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false
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char
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false
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signed char
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false
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unsigned char
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false
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wchar_t
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false
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char8_t (since C++20)
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false
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char16_t (since C++11)
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false
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char32_t (since C++11)
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false
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short
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false
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unsigned short
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false
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int
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false
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unsigned int
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false
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long
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false
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unsigned long
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false
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long long (since C++11)
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false
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unsigned long long (since C++11)
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false
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float
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usually true
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double
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usually true
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long double
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usually true
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See also
| identifies floating-point types that can represent the special value "positive infinity" (public static member constant) [edit] | |
| identifies floating-point types that can represent the special value "quiet not-a-number" (NaN) (public static member constant) [edit] | |
| identifies floating-point types that can represent the special value "signaling not-a-number" (NaN) (public static member constant) [edit] |