C ++将char转换为const char * [英] C++ convert char to const char*

问题描述

基本上我只想循环通过一个字符串拉每一个，每一个必须是类型const char *所以我可以传递给一个函数。 heres一个例子。感谢您的帮助。

Basically i just want to loop through a string of characters pull each one out and each one has to be of type const char* so i can pass it to a function. heres a example. Thanks for your help.

    string thestring = "abc123";
    const char* theval;
    string result;

    for(i = 0; i < thestring.length(); i++){
        theval = thestring[i]; //somehow convert this must be type const char*
        result = func(theval);
    }

推荐答案

string sym(1, thestring[i]);
theval = sym.c_str();

它为每个字符提供一个以null结尾的const char *。

It gives a null-terminated const char* for every character.

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