std::string 是否有空终止符?
下面的字符串是否包含空终止符''?
Will the below string contain the null terminator ''?
std::string temp = "hello whats up";
推荐答案
否，但如果您说 temp.c_str() 一个空终止符将包含在此方法的返回中.
No, but if you say temp.c_str() a null terminator will be included in the return from this method.
还值得一提的是，您可以像任何其他字符一样在字符串中包含空字符.
It's also worth saying that you can include a null character in a string just like any other character.
string s("hello");
cout << s.size() << ' ';
s[1] = '';
cout << s.size() << '
';
印刷品
5 5
而不是 5 1 ，如果空字符对字符串具有特殊含义，您可能会期望.
and not 5 1 as you might expect if null characters had a special meaning for strings.
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