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 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
   6 .\" Distributed under GPL
   7 .\" %%%LICENSE_END
   8 .\"
   9 .TH FMIN 3 2017-09-15 "" "Linux Programmer's Manual"
  10 .SH NAME
  11 fmin, fminf, fminl \- determine minimum of two floating-point numbers
  12 .SH SYNOPSIS
  13 .B #include <math.h>
  14 .PP
  15 .BI "double fmin(double " x ", double " y );
  16 .br
  17 .BI "float fminf(float " x ", float " y );
  18 .br
  19 .BI "long double fminl(long double " x ", long double " y );
  20 .PP
  21 Link with \fI\-lm\fP.
  22 .PP
  23 .in -4n
  24 Feature Test Macro Requirements for glibc (see
  25 .BR feature_test_macros (7)):
  26 .in
  27 .PP
  28 .ad l
  29 .BR fmin (),
  30 .BR fminf (),
  31 .BR fminl ():
  32 .RS 4
  33 _ISOC99_SOURCE || _POSIX_C_SOURCE\ >=\ 200112L
  34 .RE
  35 .ad
  36 .SH DESCRIPTION
  37 These functions return the lesser value of
  38 .I x
  39 and
  40 .IR y .
  41 .SH RETURN VALUE
  42 These functions return the minimum of
  43 .I x
  44 and
  45 .IR y .
  46 .PP
  47 If one argument is a NaN, the other argument is returned.
  48 .PP
  49 If both arguments are NaN, a NaN is returned.
  50 .SH ERRORS
  51 No errors occur.
  52 .SH VERSIONS
  53 These functions first appeared in glibc in version 2.1.
  54 .SH ATTRIBUTES
  55 For an explanation of the terms used in this section, see
  56 .BR attributes (7).
  57 .TS
  58 allbox;
  59 lbw24 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 .SH CONFORMING TO
  69 C99, POSIX.1-2001, POSIX.1-2008.
  70 .SH SEE ALSO
  71 .BR fdim (3),
  72 .BR fmax (3)