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std::isunordered(3) C++ Standard Libary std::isunordered(3) NAME std::isunordered - std::isunordered Synopsis Defined in header <cmath> bool isunordered( float x, float y ); (1) (since C++11) (constexpr since C++23) bool isunordered( double x, double y ); (2) (since C++11) (constexpr since C++23) bool isunordered( long double x, long double y ); (3) (since C++11) (constexpr since C++23) bool isunordered( Arithmetic x, Arithmetic y ); (4) (since C++11) (constexpr since C++23) 1-3) Determines if the floating point numbers x and y are unordered, that is, one or both are NaN and thus cannot be meaningfully compared with each other. 4) A set of overloads or a function template for all combinations of arguments of arithmetic type not covered by (1-3). If any argument has integral type, it is cast to double. Parameters x - floating point value y - floating point value Return value true if either x or y is NaN, false otherwise See also fpclassify categorizes the given floating-point value (C++11) (function) isnan checks if the given number is NaN (C++11) (function) http://cppreference.com 2022.07.31 std::isunordered(3)
NAME | Synopsis | Parameters | Return value | See also
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