数组类型转为整型

在解码h264文件时,常常会遇到解析二进制,将其保存到一个BYTE数组,或者其他类型数组中,但如果二进制代表得是整型,就需要进行转换,下例是数组转整型:

cpp:

// ShiftDemo.cpp : 定义控制台应用程序的入口点。
//
//功能:将数组(指针)类型转为整型
#include "stdafx.h"
#include <iostream>

using namespace std;
int main()
{
	short TestShort[2];
	TestShort[0] = 0x01;
	TestShort[1] = 0xc2;

	char TestChar = 0x04;

	//方法一
	unsigned short nShort8 = (TestShort[0] << 8) + TestShort[1];

	//方法二
	unsigned short nShort88;
	nShort88 = TestShort[0] << 8;
	nShort88 |= TestShort[1];

// 	int nChar8 = TestChar << 8;
// 
// 	int nShort24 = TestShort << 24;
// 
// 	int nChar24 = TestChar << 24;
// 
// 	int nShort32 = TestShort << 32;
// 
// 	int nChar32 = TestChar << 32;

	//printf("nShort8= %d, nChar8=%d, nShort24= %d, nChar24=%d, nShort32= %d, nChar32=%d
", nShort8, nChar8, nShort24, nChar24, nShort32, nChar32);
	printf("nShort8 = %d, nShort88 = %d
", nShort8, nShort88);
    return 0;
}

效果:


原文地址:https://www.cnblogs.com/SunkingYang/p/11049157.html