std::basic_string::operator[]
From cppreference.com
< cpp | string | basic string
reference operator[]( size_type pos ); |
(1) | |
const_reference operator[]( size_type pos ) const; |
(2) | |
Returns a reference to the character at specified location pos
. No bounds checking is performed.
1) If pos == size(), the behavior is undefined.
2) If pos == size(), a reference to the character with value CharT() (the null character) is returned.
|
(until C++11) |
If pos == size(), a reference to the character with value CharT() (the null character) is returned. For the first (non-const) version, the behavior is undefined if this character is modified. |
(since C++11) |
Contents |
[edit] Parameters
pos | - | position of the character to return |
[edit] Return value
Reference to the requested character.
[edit] Complexity
Constant.
[edit] Example
Run this code
#include <iostream> #include <string> int main() { { std::string const c("Exemplar"); for (unsigned i = 7;i != 0; i/=2) std::cout << c[i]; } std::cout << '\n'; { std::string s("Exemplar "); s[s.size()-1] = 'y'; std::cout << s; } }
Output:
rmx Exemplary
[edit] See also
access specified character with bounds checking (public member function) |