libjava/java/lang/natFloat.cc

   1 // natFloat.cc - Implementation of java.lang.VMFloat native methods.
   2
   3 /* Copyright (C) 1998, 1999, 2001, 2006  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 <java/lang/VMFloat.h>
  15 #include <jvm.h>
  16
  17 union u
  18 {
  19   jint l;
  20   jfloat d;
  21 };
  22
  23 jint
  24 java::lang::VMFloat::floatToIntBits(jfloat value)
  25 {
  26   union u u;
  27   u.d = value;
  28   jint e = u.l & 0x7f800000;
  29   jint f = u.l & 0x007fffff;
  30
  31   if (e == 0x7f800000 && f != 0)
  32     u.l = 0x7fc00000;
  33
  34   return u.l;
  35 }
  36
  37 jint
  38 java::lang::VMFloat::floatToRawIntBits(jfloat value)
  39 {
  40   union u u;
  41   u.d = value;
  42   return u.l;
  43 }
  44
  45 jfloat
  46 java::lang::VMFloat::intBitsToFloat(jint bits)
  47 {
  48   union u u;
  49   u.l = bits;
  50   return u.d;
  51 }
  52