#ifndef __IEEE754_H_ #define __IEEE754_H_ union ieee754_float { float f; struct { #if BYTE_ORDER == BIG_ENDIAN unsigned int negative : 1; unsigned int exponent : 8; unsigned int mantissa : 23; #endif #if BYTE_ORDER == LITTLE_ENDIAN unsigned int mantissa : 23; unsigned int exponent : 8; unsigned int negative : 1; #endif } ieee; }; #define IEEE754_FLOAT_BIAS 0x7f union ieee754_double { double d; struct { #if BYTE_ORDER == BIG_ENDIAN unsigned int negative : 1; unsigned int exponent : 11; unsigned int mantissa0 : 20; unsigned int mantissa1 : 32; #endif #if BYTE_ORDER == LITTLE_ENDIAN unsigned int mantissa1 : 32; unsigned int mantissa0 : 20; unsigned int exponent : 11; unsigned int negative : 1; #endif } ieee; }; #define IEEE754_DOUBLE_BIAS 0x3ff union ieee854_long_double { long double d; struct { #if BYTE_ORDER == BIG_ENDIAN unsigned int negative : 1; unsigned int exponent : 15; unsigned int empty : 16; unsigned int mantissa0 : 32; unsigned int mantissa1 : 32; #endif #if BYTE_ORDER == LITTLE_ENDIAN unsigned int mantissa1 : 32; unsigned int mantissa0 : 32; unsigned int exponent : 15; unsigned int negative : 1; unsigned int empty : 16; #endif } ieee; }; #define IEEE854_LONG_DOUBLE_BIAS 0x3fff #endif