github.com/afumu/libc@v0.0.6/musl/arch/x32/bits/fenv.h (about)

     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  	unsigned int __mxcsr;
    32  } fenv_t;
    33  
    34  #define FE_DFL_ENV      ((const fenv_t *) -1)