const JL_FE_UNDERFLOW = 0x10
const JL_FE_OVERFLOW = 0x08
const JL_FE_DIVBYZERO = 0x04
const JL_FE_INVALID = 0x01
const JL_FE_TONEAREST = 0
const JL_FE_UPWARD = 0x800
const JL_FE_DOWNWARD = 0x400
const JL_FE_TOWARDZERO = 0xc00
