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#define FE_INVALID 16
#define FE_DIVBYZERO 8
#define FE_OVERFLOW 4
#define FE_UNDERFLOW 2
#define FE_INEXACT 1
#define FE_ALL_EXCEPT 31
#define FE_TONEAREST 0
#define FE_DOWNWARD 2
#define FE_UPWARD 3
#define FE_TOWARDZERO 1
typedef unsigned int fexcept_t;
typedef unsigned int fenv_t;
#define FE_DFL_ENV ((const fenv_t *) -1)
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