Espaces de noms
Variantes
Affichages
Actions

std::to_string

De cppreference.com
< cpp‎ | string‎ | basic string

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page


 
C++
 
Bibliothèque de chaînes de caractères
Chaînes à zéro terminal
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.
Les chaînes d'octets
Chaines multi-octets
Les chaînes étendues
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
Les fonctions membres
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
Elément d'accès
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
Les itérateurs
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)
Capacité
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)
Opérations
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
Recherche
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
Tiers fonctions
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
stoi
stol
stoll		 (C++11)
(C++11)
(C++11)
stoul
stoull		 (C++11)
(C++11)
stof
stod
stold		 (C++11)
(C++11)
(C++11)
to_string (C++11)
to_wstring (C++11)
Classes d'aide
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)
 
Déclaré dans l'en-tête <string>
std::string to_string( int value );
 (1) (depuis C++11)
std::string to_string( long value );
 (2) (depuis C++11)
std::string to_string( long long value );
 (3) (depuis C++11)
std::string to_string( unsigned value );
 (4) (depuis C++11)
std::string to_string( unsigned long value );
 (5) (depuis C++11)
std::string to_string( unsigned long long value );
 (6) (depuis C++11)
std::string to_string( float value );
 (7) (depuis C++11)
std::string to_string( double value );
 (8) (depuis C++11)
std::string to_string( long double value );
 (9) (depuis C++11)
1)
Convertit un entier décimal signé pour une chaîne avec le même contenu que ce serait std::sprintf(buf, "%d", value) produire pour buf suffisamment grand .
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)
Convertit un entier décimal signé pour une chaîne avec le même contenu que ce serait std::sprintf(buf, "%ld", value) produire pour buf suffisamment grand ..
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)
Convertit un entier décimal signé pour une chaîne avec le même contenu que ce serait std::sprintf(buf, "%lld", value) produire pour buf suffisamment grand .
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)
Convertit un entier décimal non signé à une chaîne avec le même contenu que ce serait std::sprintf(buf, "%u", value) produire pour buf suffisamment grand .
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)
Convertit un entier décimal non signé à une chaîne avec le même contenu que ce serait std::sprintf(buf, "%lu", value) produire pour buf suffisamment grand .
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)
Convertit un entier décimal non signé à une chaîne avec le même contenu que ce serait std::sprintf(buf, "%llu", value) produire pour buf suffisamment grand .
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 @ Convertit une valeur à virgule flottante en une chaîne avec le même contenu que ce serait std::sprintf(buf, "%f", value) produire pour buf suffisamment grand .
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)
Convertit une valeur à virgule flottante en une chaîne avec le même contenu que ce serait std::sprintf(buf, "%Lf", value) produire pour buf suffisamment grand .
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.

Sommaire

[modifier] Paramètres

value -
une valeur numérique à convertir
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.

[modifier] Retourne la valeur

une chaîne de maintien de la valeur convertie
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.

[modifier] Exemple

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

Résultat : 

23.430000

[modifier] Voir aussi

(C++11)
convertit une valeur de point intégrée ou flottante 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.

(fonction) [edit]
Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/to_string&oldid=49856 »