fenv.h raw

   1  #define FE_INVALID    1
   2  #define __FE_DENORM   2
   3  #define FE_DIVBYZERO  4
   4  #define FE_OVERFLOW   8
   5  #define FE_UNDERFLOW  16
   6  #define FE_INEXACT    32
   7  
   8  #define FE_ALL_EXCEPT 63
   9  
  10  #define FE_TONEAREST  0
  11  #define FE_DOWNWARD   0x400
  12  #define FE_UPWARD     0x800
  13  #define FE_TOWARDZERO 0xc00
  14  
  15  typedef unsigned short fexcept_t;
  16  
  17  typedef struct {
  18  	unsigned short __control_word;
  19  	unsigned short __unused1;
  20  	unsigned short __status_word;
  21  	unsigned short __unused2;
  22  	unsigned short __tags;
  23  	unsigned short __unused3;
  24  	unsigned int __eip;
  25  	unsigned short __cs_selector;
  26  	unsigned int __opcode:11;
  27  	unsigned int __unused4:5;
  28  	unsigned int __data_offset;
  29  	unsigned short __data_selector;
  30  	unsigned short __unused5;
  31  } fenv_t;
  32  
  33  #define FE_DFL_ENV      ((const fenv_t *) -1)
  34