c++ string 与 char 互转 以及base64

c++ string 与 char 互转

很简单如下

 

    char bts[5] = {'A','B','C','D','E'};
    printf("%s\n",bts);
    //char to string
    std::string strBts = bts;
    std::cout << strBts << std::endl;
    
    //string to char
    char *theBts = (char *)strBts.c_str();
    printf("%s\n",theBts);

 

c++ base64 工具

//
//  base64.h
//  CPPWork
//  from http://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
//  Created by cocoa on 16/8/5.
//  Copyright © 2016年 cc. All rights reserved.
//

#ifndef base64_h
#define base64_h

#include <string>

std::string base64_encode(unsigned char const* bytes_to_encode, unsigned int in_len);
std::string base64_decode(std::string const& encoded_string);


#endif /* base64_h */

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