man3/fmin.3

   1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
   3 .\"     <mtk.manpages@gmail.com>
   4 .\"
   5 .\" SPDX-License-Identifier: GPL-1.0-or-later
   6 .\"
   7 .TH FMIN 3 2021-03-22 "Linux man-pages (unreleased)"
   8 .SH NAME
   9 fmin, fminf, fminl \- determine minimum of two floating-point numbers
  10 .SH LIBRARY
  11 Math library
  12 .RI ( libm ", " \-lm )
  13 .SH SYNOPSIS
  14 .nf
  15 .B #include <math.h>
  16 .PP
  17 .BI "double fmin(double " x ", double " y );
  18 .BI "float fminf(float " x ", float " y );
  19 .BI "long double fminl(long double " x ", long double " y );
  20 .fi
  21 .PP
  22 .RS -4
  23 Feature Test Macro Requirements for glibc (see
  24 .BR feature_test_macros (7)):
  25 .RE
  26 .PP
  27 .BR fmin (),
  28 .BR fminf (),
  29 .BR fminl ():
  30 .nf
  31     _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
  32 .fi
  33 .SH DESCRIPTION
  34 These functions return the lesser value of
  35 .I x
  36 and
  37 .IR y .
  38 .SH RETURN VALUE
  39 These functions return the minimum of
  40 .I x
  41 and
  42 .IR y .
  43 .PP
  44 If one argument is a NaN, the other argument is returned.
  45 .PP
  46 If both arguments are NaN, a NaN is returned.
  47 .SH ERRORS
  48 No errors occur.
  49 .SH VERSIONS
  50 These functions first appeared in glibc in version 2.1.
  51 .SH ATTRIBUTES
  52 For an explanation of the terms used in this section, see
  53 .BR attributes (7).
  54 .ad l
  55 .nh
  56 .TS
  57 allbox;
  58 lbx lb lb
  59 l l l.
  60 Interface       Attribute       Value
  61 T{
  62 .BR fmin (),
  63 .BR fminf (),
  64 .BR fminl ()
  65 T}      Thread safety   MT-Safe
  66 .TE
  67 .hy
  68 .ad
  69 .sp 1
  70 .SH STANDARDS
  71 C99, POSIX.1-2001, POSIX.1-2008.
  72 .SH SEE ALSO
  73 .BR fdim (3),
  74 .BR fmax (3)