libs/port/rint.c

   1 /*
   2  * rint family
   3  *
   4  * Copyright 2017 Alex Henrie
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <math.h>
  25
  26 #ifndef HAVE_RINT
  27 double rint(double x)
  28 {
  29     return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5);
  30 }
  31 #endif
  32
  33 #ifndef HAVE_RINTF
  34 float rintf(float x)
  35 {
  36     return rint(x);
  37 }
  38 #endif
  39
  40 #ifndef HAVE_LRINT
  41 long lrint(double x)
  42 {
  43     return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5);
  44 }
  45 #endif
  46
  47 #ifndef HAVE_LRINTF
  48 long lrintf(float x)
  49 {
  50     return lrint(x);
  51 }
  52 #endif
  53
  54 #ifndef HAVE_LLRINT
  55 __int64 llrint(double x)
  56 {
  57     return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5);
  58 }
  59 #endif
  60
  61 #ifndef HAVE_LLRINTF
  62 __int64 llrintf(float x)
  63 {
  64     return llrint(x);
  65 }
  66 #endif