FMIN(3) Library Functions Manual FMIN(3)

fmin fminf fminl — determine minimum numeric value of two floating-point numbers

#include <math.h>

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

The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2024 defers to the ISO C standard.

These functions shall determine the minimum numeric value of their arguments. [MX] NaN arguments shall be treated as missing data: if one argument is a NaN and the other numeric, then these functions shall choose the numeric value.

Upon successful completion, these functions shall return the minimum numeric value of their arguments.

[MX] The returned value shall be exact and shall be independent of the current rounding direction mode.

If just one argument is a NaN, the other argument shall be returned.

If and are NaN, a NaN shall be returned.

No errors are defined.

None.

None.

None.

None.

fdim(3), fmax(3)

XBD <math.h>

First released in Issue 6. Derived from the ISO/IEC 9899:1999 (“ISO C99”) standard.

Austin Group Interpretation 1003.1-2001 #008 is applied.

Austin Group Defect 1302 is applied, aligning these functions with the ISO/IEC 9899:2018 standard.

June 14, 2024 posix.fail