std::to_string

 

C++

Suporte ao Compilador

Freestanding and hosted

Linguagem

Headers da Biblioteca Standard

Requerimentos nomeados

Feature test macros (C++20)

Biblioteca de suporte de língua

Biblioteca de conceitos(C++20)

Biblioteca de diagnósticos

Biblioteca de utilitários em geral

Biblioteca de strings

Biblioteca de containers

Ranges library(C++20)

Biblioteca de iteradores

Biblioteca de algorítmos

Biblioteca numérica

Biblioteca de localizações

Biblioteca de input/output

Biblioteca de sistema de arquivo(C++17)

Biblioteca de expressões regulares(C++11)

Biblioteca de operações atômicas(C++11)

Biblioteca de suporte de thread(C++11)

Especificações Técnicas

Índice de symbolos

Bibliotecas externas

 

Biblioteca cordas

Strings terminadas Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Cadeias de bytes

Multibyte cordas

Cordas de largura

Classes Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string

char_traits

 

std::basic_string

Funções de membro Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::basic_string

basic_string::operator=

basic_string::assign

basic_string::get_allocator

acesso. Elemento Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::at

basic_string::operator[]

basic_string::front (C++11)

basic_string::back (C++11)

basic_string::data

basic_string::c_str

Iteradores Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::begin basic_string::cbegin (C++11)

basic_string::end basic_string::cend (C++11)

basic_string::rbegin basic_string::crbegin (C++11)

basic_string::rend basic_string::crend (C++11)

Capacidade Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::empty

basic_string::size

basic_string::length

basic_string::max_size

basic_string::reserve

basic_string::capacity

basic_string::shrink_to_fit (C++11)

Operações Original: Operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::clear

basic_string::insert

basic_string::erase

basic_string::push_back

basic_string::pop_back (C++11)

basic_string::append

basic_string::operator+=

basic_string::compare

basic_string::replace

basic_string::substr

basic_string::copy

basic_string::resize

basic_string::swap

Pesquisar Original: Search The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::find

basic_string::rfind

basic_string::find_first_of

basic_string::find_first_not_of

basic_string::find_last_of

basic_string::find_last_not_of

Constantes Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::npos

Não-membros funções Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator+

operator==operator!=operator<operator>operator<=operator>=

swap(std::basic_string)

operator<<operator>>

getline

stoistolstoll (C++11)(C++11)(C++11)

stoulstoull (C++11)(C++11)

stofstodstold (C++11)(C++11)(C++11)

to_string (C++11)

to_wstring (C++11)

Classes auxiliares Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

hash<std::string>hash<std::wstring>hash<std::u32string>hash<std::u16string> (C++11)

 

Definido no cabeçalho <string>
std::string to_string(int value );	(1)	(desde C++11)
std::string to_string(long value );	(2)	(desde C++11)
std::string to_string(longlong value );	(3)	(desde C++11)
std::string to_string(unsigned value );	(4)	(desde C++11)
std::string to_string(unsignedlong value );	(5)	(desde C++11)
std::string to_string(unsignedlonglong value );	(6)	(desde C++11)
std::string to_string(float value );	(7)	(desde C++11)
std::string to_string(double value );	(8)	(desde C++11)
std::string to_string(longdouble value );	(9)	(desde C++11)

1)

Converte um número decimal inteiro assinado para uma string com o mesmo conteúdo que std::sprintf(buf, "%d", value) iria produzir para buf suficientemente grande.

Original:

Converts a signed decimal integer to a string with the same content as what std::sprintf(buf, "%d", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

2)

Converte um número decimal inteiro assinado para uma string com o mesmo conteúdo que std::sprintf(buf, "%ld", value) iria produzir para buf suficientemente grande..

Original:

Converts a signed decimal integer to a string with the same content as what std::sprintf(buf, "%ld", value) would produce for sufficiently large buf..

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

3)

Converte um número decimal inteiro assinado para uma string com o mesmo conteúdo que std::sprintf(buf, "%lld", value) iria produzir para buf suficientemente grande.

Original:

Converts a signed decimal integer to a string with the same content as what std::sprintf(buf, "%lld", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

4)

Converte um inteiro decimal sem sinal a uma string com o mesmo conteúdo que std::sprintf(buf, "%u", value) iria produzir para buf suficientemente grande.

Original:

Converts an unsigned decimal integer to a string with the same content as what std::sprintf(buf, "%u", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

5)

Converte um inteiro decimal sem sinal a uma string com o mesmo conteúdo que std::sprintf(buf, "%lu", value) iria produzir para buf suficientemente grande.

Original:

Converts an unsigned decimal integer to a string with the same content as what std::sprintf(buf, "%lu", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

6)

Converte um inteiro decimal sem sinal a uma string com o mesmo conteúdo que std::sprintf(buf, "%llu", value) iria produzir para buf suficientemente grande.

Original:

Converts an unsigned decimal integer to a string with the same content as what std::sprintf(buf, "%llu", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

@ @ 7,8 Converte um valor de ponto flutuante para uma string com o mesmo conteúdo que std::sprintf(buf, "%f", value) iria produzir para buf suficientemente grande.

Original:

@7,8@ Converts a floating point value to a string with the same content as what std::sprintf(buf, "%f", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

9)

Converte um valor em ponto flutuante para uma string com o mesmo conteúdo que std::sprintf(buf, "%Lf", value) iria produzir para buf suficientemente grande.

Original:

Converts a floating point value to a string with the same content as what std::sprintf(buf, "%Lf", value) would produce for sufficiently large buf.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Parâmetros

value

-

um valor numérico para converter Original: a numeric value to convert 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

uma string com o valor convertido

Original:

a string holding the converted value

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Exemplo

#include <iostream>#include <string>   int main(){double f =23.43;std::string f_str = std::to_string(f);std::cout<< f_str <<'\n';}

Saída:

23.430000

Veja também

to_wstring (C++11)	converte um valor de ponto flutuante para integral ou wstring Original: converts an integral or floating point value to wstring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função)