[fio.git] / lib / ieee754.h

#ifndef FIO_IEEE754_H
#define FIO_IEEE754_H

#include <inttypes.h>

extern uint64_t pack754(long double f, unsigned bits, unsigned expbits);
extern long double unpack754(uint64_t i, unsigned bits, unsigned expbits);

#define fio_double_to_uint64(val)	pack754((val), 64, 11)
#define fio_uint64_to_double(val)	unpack754((val), 64, 11)

typedef struct fio_fp64 {
	union {
		uint64_t i;
		double f;
		uint8_t filler[16];
	} u;
} fio_fp64_t;

#endif
Commit	Line	Data
	1	#ifndef FIO_IEEE754_H
	2	#define FIO_IEEE754_H
	3
	4	#include <inttypes.h>
	5
	6	extern uint64_t pack754(long double f, unsigned bits, unsigned expbits);
	7	extern long double unpack754(uint64_t i, unsigned bits, unsigned expbits);
	8
	9	#define fio_double_to_uint64(val) pack754((val), 64, 11)
	10	#define fio_uint64_to_double(val) unpack754((val), 64, 11)
	11
	12	typedef struct fio_fp64 {
	13	union {
	14	uint64_t i;
	15	double f;
	16	uint8_t filler[16];
	17	} u;
	18	} fio_fp64_t;
	19
	20	#endif