man3/fmin.3

   1 '\" t
   2 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
   3 .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
   4 .\"     <mtk.manpages@gmail.com>
   5 .\"
   6 .\" SPDX-License-Identifier: GPL-1.0-or-later
   7 .\"
   8 .TH fmin 3 (date) "Linux man-pages (unreleased)"
   9 .SH NAME
  10 fmin, fminf, fminl \- determine minimum of two floating-point numbers
  11 .SH LIBRARY
  12 Math library
  13 .RI ( libm ", " \-lm )
  14 .SH SYNOPSIS
  15 .nf
  16 .B #include <math.h>
  17 .PP
  18 .BI "double fmin(double " x ", double " y );
  19 .BI "float fminf(float " x ", float " y );
  20 .BI "long double fminl(long double " x ", long double " y );
  21 .fi
  22 .PP
  23 .RS -4
  24 Feature Test Macro Requirements for glibc (see
  25 .BR feature_test_macros (7)):
  26 .RE
  27 .PP
  28 .BR fmin (),
  29 .BR fminf (),
  30 .BR fminl ():
  31 .nf
  32     _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
  33 .fi
  34 .SH DESCRIPTION
  35 These functions return the lesser value of
  36 .I x
  37 and
  38 .IR y .
  39 .SH RETURN VALUE
  40 These functions return the minimum of
  41 .I x
  42 and
  43 .IR y .
  44 .PP
  45 If one argument is a NaN, the other argument is returned.
  46 .PP
  47 If both arguments are NaN, a NaN is returned.
  48 .SH ERRORS
  49 No errors occur.
  50 .SH VERSIONS
  51 These functions were added in glibc 2.1.
  52 .SH ATTRIBUTES
  53 For an explanation of the terms used in this section, see
  54 .BR attributes (7).
  55 .ad l
  56 .nh
  57 .TS
  58 allbox;
  59 lbx lb lb
  60 l l l.
  61 Interface       Attribute       Value
  62 T{
  63 .BR fmin (),
  64 .BR fminf (),
  65 .BR fminl ()
  66 T}      Thread safety   MT-Safe
  67 .TE
  68 .hy
  69 .ad
  70 .sp 1
  71 .SH STANDARDS
  72 C99, POSIX.1-2001, POSIX.1-2008.
  73 .SH SEE ALSO
  74 .BR fdim (3),
  75 .BR fmax (3)