C++之位测试练习的相关代码-白红宇

C++之位测试练习的相关代码

阅读量：4025 次

发布时间：2019-05-24

本文共 1211 字，大约阅读时间需要 4 分钟。

## 位测试相关代码

#include 
   
    #include 
    
     #include 
     
      using namespace std;typedef unsigned int UINT32;typedef union {	struct Color{		UINT32 end:6;		UINT32 b:8;		UINT32 g:8;		UINT32 r:8;		UINT32 type: 2;	} color;	UINT32 data;} ColorData;#define TYPE_LEN 2#define R_LEN 8#define G_LEN 8#define B_LEN 8#define END_LEN 6UINT32 formColor(UINT32 type,UINT32 r,UINT32 g,UINT32 b,UINT32 end){	printf("type:\t%u\n",type << 30);	printf("r:\t%u\n",r << 22);	printf("g:\t%u\n",g << 14);	printf("b:\t%u\n",b << 6);	return (type << 30) + (r << 22) + (g << 14) + (b << 6) + (end);}bool isBigEndian(){	int x = 1;	char * p = (char *)&x;	if(*p == 1)		return false;	else		return true;}int main(){		ColorData gColorData;	UINT32 col = formColor(2,60,60,60,20);	gColorData.data = col;	printf("htonl:\t%d\n",col);	printf("Endian-Mode:%d\n",isBigEndian());	printf("colordata:\t%u\n",col);	printf("==============================================\n");	printf("type:\t%d\n",gColorData.color.type);	printf("r:\t%d\n",gColorData.color.r);	printf("g:\t%d\n",gColorData.color.g);	printf("b:\t%d\n",gColorData.color.b);	printf("end:\t%d\n",gColorData.color.end);	printf("==============================================\n");	return 0;}