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#define FE_INEXACT 0x010000
#define FE_UNDERFLOW 0x020000
#define FE_OVERFLOW 0x040000
#define FE_DIVBYZERO 0x080000
#define FE_INVALID 0x100000
#define FE_ALL_EXCEPT 0x1F0000
#define FE_TONEAREST 0x000
#define FE_TOWARDZERO 0x100
#define FE_UPWARD 0x200
#define FE_DOWNWARD 0x300
typedef unsigned fexcept_t;
typedef struct {
unsigned __cw;
} fenv_t;
#define FE_DFL_ENV ((const fenv_t *) -1)
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