std::basic_string<CharT,Traits,Allocator>::push_back

`void push_back( CharT ch );`		( C++20)
`constexpr void push_back( CharT ch );`		( C++20)

ch .

ch

()

.

size() > max_size(), std::length_error.

- , ( ).

#include <iomanip>
#include <iostream>
#include <string>

int main()
{
    std::string str{" "};
    std::cout << "1) " << std::quoted(str) << ", : " << str.size() << '\n';
    
    str.push_back('!');
    std::cout << "2) " << std::quoted(str) << ", : " << str.size() << '\n';
}

:

1) " ", : 29
2) " !", : 30

C++:


LWG 7	C++98	(1) C++ (2) `const CharT`	(1) (2) `CharT`
LWG 847	C++98

pop_back

(DR*)

(public -) []







(C++20)

(C++20)
(C++11)





(C++20)


/

(C++11)
(C++11)
(C++11)
(C++17)

cppreference.com

std::basic_string<CharT,Traits,Allocator>::push_back