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std::basic_string::replace — cppreference.com

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basic_string& replace( size_type pos, size_type count, const basic_string& str ); basic_string& replace( const_iterator first, const_iterator last, const basic_string& str );

 (1)

basic_string& replace( size_type pos, size_type count, const basic_string& str, size_type pos2, size_type count2 ); template< class InputIt > basic_string& replace( const_iterator first, const_iterator last, InputIt first2, InputIt last2 );

 (2)

basic_string& replace( size_type pos, size_type count, const CharT* cstr, size_type count2 ); basic_string& replace( const_iterator first, const_iterator last, const CharT* cstr, size_type count2 );

 (3)

basic_string& replace( size_type pos, size_type count, const CharT* cstr ); basic_string& replace( const_iterator first, const_iterator last, const CharT* cstr );

 (4)

basic_string& replace( size_type pos, size_type count, size_type count2, CharT ch ); basic_string& replace( const_iterator first, const_iterator last, size_type count2, CharT ch );

 (5)

basic_string& replace( const_iterator first, const_iterator last, std::initializer_list<CharT> ilist );

 (6) (depuis C++11)

Remplace la partie de la chaîne signalée par le [pos, pos + count) ou [first, last) par une nouvelle chaîne .

Original:

Replaces the part of the string indicated by either [pos, pos + count) or [first, last) with a new string.

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La nouvelle chaîne peuvent être:

Original:

The new string can be one of:

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1)

str chaîne

Original:

string str

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2)

[pos2, pos2 + count2) chaîne de caractères ou str dans le [first2, last2) gamme

Original:

substring [pos2, pos2 + count2) of str or characters in the range [first2, last2)

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3)

charcters count2 premiers de la chaîne de caractères pointée par cstr

Original:

first count2 charcters of the character string pointed to by cstr

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4)

chaîne de caractères terminée par NULL pointé par cstr

Original:

null-terminated character string pointed to by cstr

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5)

count2 copies de ch caractère

Original:

count2 copies of character ch

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6)

caractères dans la liste d'initialisation ilist

Original:

characters in the initializer list ilist

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Paramètres

pos -

le début de la sous-chaîne qui va être remplacé

Original:

start of the substring that is going to be replaced

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count -

longueur de la chaîne qui va être remplacé

Original:

length of the substring that is going to be replaced

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first, last -

plage de caractères qui va être remplacé

Original:

range of characters that is going to be replaced

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str -

chaîne à utiliser pour le remplacement

Original:

string to use for replacement

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pos2 -

début de la chaîne à remplacer

Original:

start of the substring to replace with

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count2 -

nombre de caractères de remplacement

Original:

number of characters to replace with

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cstr -

pointeur vers la chaîne de caractères à utiliser pour le remplacement

Original:

pointer to the character string to use for replacement

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ch -

caractère de la valeur à utiliser pour le remplacement

Original:

character value to use for replacement

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first2, last2 -

plage de caractères à utiliser pour le remplacement

Original:

range of characters to use for replacement

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init -

liste d'initialisation avec les caractères à utiliser pour le remplacement

Original:

initializer list with the characters to use for replacement

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Type requirements
-InputIt must meet the requirements of InputIterator.

Retourne la valeur

*this

Exceptions

std::out_of_range if pos > length() or pos2 > str.length()

std::length_error si la chaîne résultante ne dépasse pas la longueur maximale possible de chaîne (std::string::npos - 1)

Original:

std::length_error if the resulting string will exceed maximum possible string length (std::string::npos - 1)

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Exemple

#include <iostream>
#include <string>

int main()
{
    std::string str("The quick brown fox jumps over the lazy dog.");
    
    str.replace(10, 5, "red"); // (4)
    
    str.replace(str.begin(), str.begin() + 3, 1, 'A'); // (5)
    
    std::cout << str << '\n';
}

Résultat : 

A quick red fox jumps over the lazy dog.