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std::tolower

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< cpp‎ | string‎ | byte

 
 
Bibliothèque de chaînes de caractères
Chaînes à zéro terminal
Original:
Null-terminated strings
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Les chaînes d'octets
Chaines multi-octets
Les chaînes étendues
Classes
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Classes
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basic_string
char_traits
 
Chaînes d'octets à zéro terminal
Fonctions
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Functions
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Manipulation caractère
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Character manipulation
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Conversion aux formats numériques
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Conversions to numeric formats
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La manipulation de chaînes
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String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
Examen chaîne
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String examination
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Manipulation de la mémoire
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Memory manipulation
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memchr
memcmp
memset
memcpy
memmove
Divers
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Miscellaneous
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strerror
 
Defined in header <cctype>
int tolower( int ch );
Convertit le caractère donné en minuscules, conformément aux règles de conversion de caractères définies par les paramètres régionaux actuellement installé C .
Original:
Converts the given character to lowercase according to the character conversion rules defined by the currently installed C locale.
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Sommaire

[modifier] Paramètres

ch -
caractère à convertir
Original:
character to be converted
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[modifier] Retourne la valeur

Version en minuscules ou ch ch non modifiée si aucune version en minuscules est répertorié dans la locale courante C .
Original:
Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.
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[modifier] Exemple

#include <iostream>
#include <cctype>
#include <clocale>
 
int main()
{
    char c = '\xb4'; // the character Ž in ISO-8859-15
                     // but ´ (acute accent) in ISO-8859-1 
 
    std::setlocale(LC_ALL, "en_US.iso88591");
    std::cout << std::hex << std::showbase;
    std::cout << "in iso8859-1, tolower('0xb4') gives "
              << std::tolower(c) << '\n';
    std::setlocale(LC_ALL, "en_US.iso885915");
    std::cout << "in iso8859-15, tolower('0xb4') gives "
              << std::tolower(c) << '\n';
}

Résultat :

in iso8859-1, tolower('0xb4') gives 0xb4
in iso8859-15, tolower('0xb4') gives 0xb8

[modifier] Voir aussi

convertit un caractère en majuscules
Original:
converts a character to uppercase
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(fonction) [edit]
converts a character to lowercase using the ctype facet of a locale
(fonction générique) [edit]
convertit le caractère large en minuscules
Original:
converts a wide character to lowercase
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(fonction) [edit]
C documentation for tolower