function
<cmath> <ctgmath>

fmin

     double fmin  (double x     , double y);
      float fminf (float x      , float y);
long double fminl (long double x, long double y);

     double fmin (double x     , double y);
      float fmin (float x      , float y);
long double fmin (long double x, long double y);
     double fmin (Type1 x      , Type2 y);       // additional overloads
Minimum value
Returns the smaller of its arguments: either x or y.

If one of the arguments in a NaN, the other is returned.

Header <tgmath.h> provides a type-generic macro version of this function.
Additional overloads are provided in this header (<cmath>) for other combinations of arithmetic types (Type1 and Type2): These overloads effectively cast its arguments to double before calculations, except if at least one of the arguments is of type long double (in which case both are casted to long double instead).

Parameters

x, y
Values among which the function selects a minimum.

Return Value

The minimum numeric value of its arguments.

Example

1
2
3
4
5
6
7
8
9
10
11
 
/* fmin example */
#include <stdio.h>      /* printf */
#include <math.h>       /* fmin */

int main ()
{
  printf ("fmin (100.0, 1.0) = %f\n", fmin(100.0,1.0));
  printf ("fmin (-100.0, 1.0) = %f\n", fmin(-100.0,1.0));
  printf ("fmin (-100.0, -1.0) = %f\n", fmin(-100.0,-1.0));
  return 0;
}


Output:

fmin (100.0, 1.0) = 1.000000
fmin (-100.0, 1.0) = -100.000000
fmin (-100.0,-1.0) = -100.000000

See also

fmax
Maximum value (function )
fdim
Positive difference (function )

C++