Difference between revisions of "cpp/numeric/math/copysign"
From cppreference.com
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m (Use since= and until= params of {{dcl}} template.) |
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{{dcl begin}} | {{dcl begin}} | ||
{{dcl header | cmath}} | {{dcl header | cmath}} | ||
| − | {{dcl | | + | {{dcl | since=c++11 | num = 1| |
float copysign( float x, float y ); | float copysign( float x, float y ); | ||
}} | }} | ||
| − | {{dcl | | + | {{dcl | since=c++11 | num = 2| |
double copysign( double x, double y ); | double copysign( double x, double y ); | ||
}} | }} | ||
| − | {{dcl | | + | {{dcl | since=c++11 | num = 3| |
long double copysign( long double x, long double y ); | long double copysign( long double x, long double y ); | ||
}} | }} | ||
| − | {{dcl | | + | {{dcl | since=c++11 | num = 4| |
Promoted copysign( Arithmetic x, Arithmetic y ); | Promoted copysign( Arithmetic x, Arithmetic y ); | ||
}} | }} | ||
Revision as of 15:42, 1 July 2013
| Defined in header <cmath>
|
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| float copysign( float x, float y ); |
(1) | (since C++11) |
| double copysign( double x, double y ); |
(2) | (since C++11) |
| long double copysign( long double x, long double y ); |
(3) | (since C++11) |
| Promoted copysign( Arithmetic x, Arithmetic y ); |
(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.
Parameters
| x, y | - | floating point values |
Return value
floating point value with the magnitude of x and the sign of y
See also
| (C++11)(C++11) |
absolute value of a floating point value (|x|) (function) |
| (C++11) |
checks if the given number is negative (function) |
