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 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
   5 .\" Distributed under GPL
   6 .\" %%%LICENSE_END
   7 .\"
   8 .TH FMIN 3 2010-09-20 "" "Linux Programmer's Manual"
   9 .SH NAME
  10 fmin, fminf, fminl \- determine minimum of two floating-point numbers
  11 .SH SYNOPSIS
  12 .B #include <math.h>
  13 .sp
  14 .BI "double fmin(double " x ", double " y );
  15 .br
  16 .BI "float fminf(float " x ", float " y );
  17 .br
  18 .BI "long double fminl(long double " x ", long double " y );
  19 .sp
  20 Link with \fI\-lm\fP.
  21 .sp
  22 .in -4n
  23 Feature Test Macro Requirements for glibc (see
  24 .BR feature_test_macros (7)):
  25 .in
  26 .sp
  27 .ad l
  28 .BR fmin (),
  29 .BR fminf (),
  30 .BR fminl ():
  31 .RS 4
  32 _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE ||
  33 _POSIX_C_SOURCE\ >=\ 200112L;
  34 .br
  35 or
  36 .I cc\ -std=c99
  37 .RE
  38 .ad
  39 .SH DESCRIPTION
  40 These functions the lesser value of
  41 .I x
  42 and
  43 .IR y .
  44 .SH RETURN VALUE
  45 These functions return the minimum of
  46 .I x
  47 and
  48 .IR y .
  49
  50 If one argument is a NaN, the other argument is returned.
  51
  52 If both arguments are NaN, a NaN is returned.
  53 .SH ERRORS
  54 No errors occur.
  55 .SH VERSIONS
  56 These functions first appeared in glibc in version 2.1.
  57 .SH CONFORMING TO
  58 C99, POSIX.1-2001.
  59 .SH SEE ALSO
  60 .BR fmax (3)