float fminf( float x, float y );
(1) (since C99)double fmin( double x, double y );
(2) (since C99)long double fminl( long double x, long double y );
(3) (since C99)#define fmin( x, y )
(4) (since C99)1-3) Returns the smaller of two floating-point arguments, treating NaNs as missing data (between a NaN and a numeric value, the numeric value is chosen).
4) Type-generic macro: If any argument has type long double, fminl is called. Otherwise, if any argument has integer type or has type double, fmin is called. Otherwise, fminf is called.
If successful, returns the smaller of two floating-point values. The value returned is exact and does not depend on any rounding modes.
[edit] Error handlingThis function is not subject to any of the error conditions specified in math_errhandling.
If the implementation supports IEEE floating-point arithmetic (IEC 60559),
This function is not required to be sensitive to the sign of zero, although some implementations additionally enforce that if one argument is +0 and the other is -0, then -0 is returned.
[edit] Example#include <math.h>
#include <stdio.h>
int main(void)
{
printf("fmin(2,1) = %f\n", fmin(2, 1));
printf("fmin(-Inf,0) = %f\n", fmin(-INFINITY, 0));
printf("fmin(NaN,-1) = %f\n", fmin(NAN, -1));
}
Possible output:
fmin(2,1) = 1.000000 fmin(-Inf,0) = -inf fmin(NaN,-1) = -1.000000[edit] References
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