mono/metadata/number-ms.h

   1 #ifndef __MONO_NUMBER_MS_H__
   2 #define __MONO_NUMBER_MS_H__
   3
   4 #include <glib.h>
   5
   6 // Double floating point Bias
   7 #define MONO_DOUBLE_BIAS 1022
   8
   9 // Structure to access an encoded double floating point
  10 typedef struct {
  11 #if G_BYTE_ORDER == G_BIG_ENDIAN
  12         guint sign   : 1;
  13         guint exp    : 11;
  14         guint mantHi : 20;
  15         guint mantLo : 32;
  16 #else // BIGENDIAN
  17         guint mantLo : 32;
  18         guint mantHi : 20;
  19         guint exp    : 11;
  20         guint sign   : 1;
  21 #endif
  22 } MonoDouble;
  23
  24 typedef union {
  25         MonoDouble s;
  26         gdouble d;
  27 } MonoDouble_double;
  28
  29 // Single floating point Bias
  30 #define MONO_SINGLE_BIAS 126
  31
  32 // Structure to access an encoded single floating point
  33 typedef struct {
  34 #if G_BYTE_ORDER == G_BIG_ENDIAN
  35         guint sign : 1;
  36         guint exp  : 8;
  37         guint mant : 23;
  38 #else
  39         guint mant : 23;
  40         guint exp  : 8;
  41         guint sign : 1;
  42 #endif
  43 } MonoSingle;
  44
  45 typedef union {
  46         MonoSingle s;
  47         gfloat f;
  48 } MonoSingle_float;
  49
  50 #define MONO_NUMBER_MAXDIGITS 50
  51
  52 typedef struct  {
  53         gint32 precision;
  54         gint32 scale;
  55         gint32 sign;
  56         guint16 digits [MONO_NUMBER_MAXDIGITS + 1];
  57         guint16 *allDigits;
  58 } MonoNumber;
  59
  60 gint
  61 mono_double_from_number (gpointer from, MonoDouble *target);
  62
  63 #endif