std::copysign
From cppreference.com
| Defined in header
<cmath>
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| float copysign( float x, float y );
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(1) | (since C++11) |
| double copysign( double x, double y );
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(2) | (since C++11) |
| long double copysign( long double x, long double y );
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(3) | (since C++11) |
| Promoted copysign( Arithmetic1 x, Arithmetic2 y );
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(4) | (since C++11) |
Composes a floating point value with the magnitude of x and the sign of y.
4) If any argument has integral type, it is cast to double. If any other argument is long double, then the return type is long double, otherwise it is double.
[edit] Parameters
| x, y | - | floating point values |
[edit] Return value
floating point value with the magnitude of x and the sign of y
[edit] See also
| absolute value of a floating point value (|x|) (function) |
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| (C++11)
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checks if the given number is negative (function) |
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C documentation for copysign
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