libjava/java/lang/natFloat.cc

   1 // natFloat.cc - Implementation of java.lang.Float native methods.
   2
   3 /* Copyright (C) 1998, 1999, 2001  Free Software Foundation
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 #include <config.h>
  12
  13 #include <java/lang/Float.h>
  14 #include <jvm.h>
  15
  16 union u
  17 {
  18   jint l;
  19   jfloat d;
  20 };
  21
  22 jint
  23 java::lang::Float::floatToIntBits(jfloat value)
  24 {
  25   union u u;
  26   u.d = value;
  27   jint e = u.l & 0x7f800000;
  28   jint f = u.l & 0x007fffff;
  29
  30   if (e == 0x7f800000 && f != 0)
  31     u.l = 0x7fc00000;
  32
  33   return u.l;
  34 }
  35
  36 jint
  37 java::lang::Float::floatToRawIntBits(jfloat value)
  38 {
  39   union u u;
  40   u.d = value;
  41   return u.l;
  42 }
  43
  44 jfloat
  45 java::lang::Float::intBitsToFloat(jint bits)
  46 {
  47   union u u;
  48   u.l = bits;
  49   return u.d;
  50 }
  51