std::operator+(std::basic_string)
De cppreference.com
<metanoindex/>
<tbody> </tbody> template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( const basic_string<CharT,Traits,Alloc>& lhs, const basic_string<CharT,Traits,Alloc>& rhs ); |
(1) | |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( const CharT* lhs, const basic_string<CharT,Traits,Alloc>& rhs ); |
(2) | |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( CharT lhs, const basic_string<CharT,Traits,Alloc>& rhs ); |
(3) | |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( const basic_string<CharT,Traits,Alloc>& lhs, const CharT* rhs ); |
(4) | |
template<class CharT, class Traits, class Alloc> basic_string<CharT,Traits,Alloc> operator+( const basic_string<CharT,Traits,Alloc>& lhs, CharT rhs ); |
(5) | |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( basic_string<CharT,Traits,Alloc>&& lhs, const basic_string<CharT,Traits,Alloc>& rhs ); |
(6) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( const basic_string<CharT,Traits,Alloc>& lhs, basic_string<CharT,Traits,Alloc>&& rhs ); |
(7) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( basic_string<CharT,Traits,Alloc>&& lhs, basic_string<CharT,Traits,Alloc>&& rhs ); |
(8) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+(const CharT* lhs, basic_string<CharT,Traits,Alloc>&& rhs ); |
(9) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( CharT lhs, basic_string<CharT,Traits,Alloc>&& rhs ); |
(10) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( basic_string<CharT,Traits,Alloc>&& lhs, const CharT* rhs ); |
(11) | (desde C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( basic_string<CharT,Traits,Alloc>&& lhs, CharT rhs ); |
(12) | (desde C++11) |
Retorna uma string contendo caracteres de
lhs seguido pelos personagens de rhs.Original:
Returns a string containing characters from
lhs followed by the characters from rhs.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Parâmetros
| lhs | - | string, caráter, ou ponteiro para o primeiro caractere em uma matriz terminada em null
Original: string, character, or pointer to the first character in a null-terminated array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| rhs | - | string, caráter, ou ponteiro para o primeiro caractere em uma matriz terminada em null
Original: string, character, or pointer to the first character in a null-terminated array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Valor de retorno
1) basic_string<CharT,Traits,Alloc>(lhs).append(rhs)
2) basic_string<CharT,Traits,Alloc>(lhs) + rhs
3) basic_string<CharT,Traits,Alloc>(1,lhs) + rhs
4) lhs + basic_string<CharT,Traits,Alloc>(rhs)
5) lhs + basic_string<CharT,Traits,Alloc>(1,rhs)
6) std::move(lhs.append(rhs))
7) std::move(rhs.insert(0, lhs))
8) std::move(lhs.append(rhs)) or std::move(rhs.insert(0, lhs))
9) std::move(rhs.insert(0, lhs))
10) std::move(rhs.insert(0, 1, lhs))
11) std::move(lhs.append(rhs))
12) std::move(lhs.append(1, rhs))
Exemplo
#include <iostream>
#include <string>
int main()
{
std::string s1 = "Hello";
std::string s2 = "world";
std::cout << s1 + ' ' + s2 + "!\n";
}
Saída:
Hello world!