'\" t .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de) .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk .\" .\" .\" SPDX-License-Identifier: GPL-1.0-or-later .\" .TH fmin 3 2022-12-15 "Linux man-pages 6.03" .SH NAME fmin, fminf, fminl \- determine minimum of two floating-point numbers .SH LIBRARY Math library .RI ( libm ", " \-lm ) .SH SYNOPSIS .nf .B #include .PP .BI "double fmin(double " x ", double " y ); .BI "float fminf(float " x ", float " y ); .BI "long double fminl(long double " x ", long double " y ); .fi .PP .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE .PP .BR fmin (), .BR fminf (), .BR fminl (): .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L .fi .SH DESCRIPTION These functions return the lesser value of .I x and .IR y . .SH RETURN VALUE These functions return the minimum of .I x and .IR y . .PP If one argument is a NaN, the other argument is returned. .PP If both arguments are NaN, a NaN is returned. .SH ERRORS No errors occur. .SH VERSIONS These functions were added in glibc 2.1. .SH ATTRIBUTES For an explanation of the terms used in this section, see .BR attributes (7). .ad l .nh .TS allbox; lbx lb lb l l l. Interface Attribute Value T{ .BR fmin (), .BR fminf (), .BR fminl () T} Thread safety MT-Safe .TE .hy .ad .sp 1 .SH STANDARDS C99, POSIX.1-2001, POSIX.1-2008. .SH SEE ALSO .BR fdim (3), .BR fmax (3)