std::isunordered
From cppreference.com
| Defined in header
<cmath>
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| bool isunordered( float x, float y );
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(1) | (since C++11) |
| bool isunordered( double x, double y );
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(2) | (since C++11) |
| bool isunordered( long double x, long double y );
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(3) | (since C++11) |
| bool isunordered( Arithmetic x, Arithmetic y );
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(4) | (since C++11) |
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.
[edit] Parameters
| x | - | floating point value |
| y | - | floating point value |
[edit] Return value
true if either x or y is NaN, false otherwise
[edit] See also
| (C++11)
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categorizes the given floating point value (function) |
| (C++11)
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checks if the given number is NaN (function) |
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C documentation for isunordered
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