std::basic_string::c_str
|
const CharT* c_str() const;
| ||
Returns a pointer to a null-terminated character array with data equivalent to those stored in the string.
The pointer is such that the range [c_str(); c_str() + size()] is valid and the values in it correspond to the values stored in the string with an additional null character after the last position.
The pointer obtained from c_str() may be invalidated by:
- Passing a non-const reference to the string to any standard library function, or
- Calling non-const member functions on the string, excluding operator[], at(), front(), back(), begin(),rbegin(), end() and rend().
Writing to the character array accessed through c_str() is undefined behavior.
c_str() and data() perform the same function. | (since C++11) |
这里：
用c_str() 方法可以返回一个指向C-风格的字符串的指针。
如:
string filename;
cout << "Enter the file name: ":
cin >> filename;
ofstream fout;
fout.open(filename.c_str());最后
以上就是单纯翅膀最近收集整理的关于C++：关于string转C-风格字符串 std::basic_string::c_str的全部内容，更多相关C++：关于string转C-风格字符串内容请搜索靠谱客的其他文章。
本图文内容来源于网友提供，作为学习参考使用，或来自网络收集整理，版权属于原作者所有。
发表评论 取消回复