std::basic_ostream::swap
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< cpp | io | basic ostream
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protected: void swap(basic_ostream& rhs); | (desde C++11) | |
Chama basic_ios::swap(rhs) para trocar todos os membros de dados da classe base, com exceção de rdbuf(), entre *this e
rhs. Esta função swap é protegido: chama-se pelas funções de swap das classes de fluxo de saída de swap std::basic_ofstream e std::basic_ostringstream, que sabe como fazer corretamente trocar os streambuffers associados.Original:
Calls basic_ios::swap(rhs) to swap all data members of the base class, except for rdbuf(), between *this and
rhs. This swap function is protected: it is called by the swap functions of the swappable output stream classes std::basic_ofstream and std::basic_ostringstream, which know how to correctly swap the associated streambuffers.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[editar]Parâmetros
| rhs | - | um basic_ostream do mesmo tipo para trocar com Original: a basic_ostream of the same type to swap with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[editar]Exemplo
#include <sstream>#include <iostream>#include <utility>int main(){std::ostringstream s1("hello");std::ostringstream s2("bye"); s1.swap(s2);// OK, ostringstream has a public swap()std::swap(s1, s2);// OK, calls s1.swap(s2) // std::cout.swap(s2); // ERROR: swap is a protected member std::cout<< s1.str()<<'\n';}
Saída:
hello
