std::basic_string<CharT,Traits,Allocator>::c_str
From cppreference.com
< cpp | string | basic string
const CharT* c_str() const; |
(noexcept since C++11) (constexpr since C++20) |
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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()(since C++11).
Writing to the character array accessed through c_str() is undefined behavior.
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(since C++11) |
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