Section: POSIX Programmer's Manual (3P)
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
--- determine minimum numeric value of two floating-point numbers
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.1-2017 defers to the ISO C standard.
These functions shall determine the minimum numeric value of their
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.
If just one argument is a NaN, the other argument shall be returned.
are NaN, a NaN shall be returned.
No errors are defined.
The following sections are informative.
The Base Definitions volume of POSIX.1-2017,
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group.
In the event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online at
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