std::operator+(std::basic_string)
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<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) | (seit 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) | (seit 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) | (seit 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) | (seit C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( CharT lhs, basic_string<CharT,Traits,Alloc>&& rhs ); |
(10) | (seit 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) | (seit C++11) |
template< class CharT, class Traits, class Alloc > basic_string<CharT,Traits,Alloc> operator+( basic_string<CharT,Traits,Alloc>&& lhs, CharT rhs ); |
(12) | (seit C++11) |
Gibt einen String mit Zeichen aus
lhs gefolgt von den Zeichen aus 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.
Parameter
| lhs | - | String, Charakter oder Zeiger auf das erste Zeichen in einem null-terminated Array
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, Charakter oder Zeiger auf das erste Zeichen in einem null-terminated Array
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. |
Rückgabewert
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))
Beispiel
#include <iostream>
#include <string>
int main()
{
std::string s1 = "Hello";
std::string s2 = "world";
std::cout << s1 + ' ' + s2 + "!\n";
}
Output:
Hello world!