ieee.h

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

#ifndef __CRT_INTERNAL_IEEE_H
#define __CRT_INTERNAL_IEEE_H

typedef struct {
    unsigned int mantissa:23;
    unsigned int exponent:8;
    unsigned int sign:1;
} float_t;

typedef struct {
    unsigned int mantissal:32;
    unsigned int mantissah:20;
    unsigned int exponent:11;
    unsigned int sign:1;
} double_t;

typedef struct {
    unsigned int mantissal:32;
    unsigned int mantissah:32;
    unsigned int exponent:15;
    unsigned int sign:1;
    unsigned int empty:16;
} long_double_t;

#endif