std::fdim
From cppreference.com
| Defined in header
<cmath>
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| float fdim( float x, float y );
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(1) | (since C++11) |
| double fdim( double x, double y );
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(2) | (since C++11) |
| long double fdim( long double x, long double y );
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(3) | (since C++11) |
| Promoted fdim( Arithmetic1 x, Arithmetic2 y );
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(4) | (since C++11) |
Returns the positive difference between x and y. This could be implemented as fmax (x - y, 0), so if x ≤ y, the result is always equals to 0, otherwise it is x - 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 | - | values of floating-point or integral types |
[edit] Return value
The positive difference value.
[edit] See also
| (C++11)
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computes absolute value of an integral value (|x|) (function) |
| (C++11)
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larger of two floating point values (function) |
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C documentation for fdim
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