fabs, fabsf

Calculates the absolute value of the floating-point argument.

double fabs( 
   double x 
);
float fabs(
   float x 
); // C++ only
long double fabs(
   long double x
); // C++ only
float fabsf( 
   float x 
);

Parameters

• x
  Floating-point value.

Return Value

fabs returns the absolute value of its argument. There is no error return.

Remarks

C++ allows overloading, so you can call overloads of fabs. In a C program, fabs always takes and returns a double.

Requirements

For additional compatibility information, see Compatibility in the Introduction.

Example

See the example for abs.

.NET Framework Equivalent

System::Math::Abs

See Also

Concepts

Floating-Point Support

abs, _abs64

_cabs

labs