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std::tolower

Da cppreference.com.
< cpp‎ | string‎ | byte

 
 
Stringhe libreria
Null-stringhe terminate
Original:
Null-terminated strings
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Byte stringhe
Multibyte stringhe
Stringhe larghe
Classi
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Classes
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basic_string
char_traits
 
Null-stringhe terminate byte
Funzioni
Original:
Functions
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Carattere manipolazione
Original:
Character manipulation
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Le conversioni in formati numerici
Original:
Conversions to numeric formats
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Della gestione delle stringhe
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String manipulation
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strcpy
strncpy
strcat
strncat
strxfrm
String esame
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String examination
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Memoria manipolazione
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Memory manipulation
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memchr
memcmp
memset
memcpy
memmove
Varie
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Miscellaneous
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strerror
 
Defined in header <cctype>
int tolower( int ch );
Converte il carattere dato in minuscolo in base alle leggi di conversione dei caratteri definiti dalle impostazioni internazionali attualmente installato 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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Indice

[modifica] Parametri

ch -
carattere da convertire
Original:
character to be converted
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[modifica] Valore di ritorno

Versione minuscola del ch o ch non modificato se non versione minuscola è presente nella versione locale corrente C.
Original:
Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.
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[modifica] Esempio

#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';
}

Output:

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

[modifica] Vedi anche

converte un carattere in maiuscolo
Original:
converts a character to uppercase
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(funzione) [edit]
converts a character to lowercase using the ctype facet of a locale
(funzione di modello) [edit]
converte un carattere esteso in minuscolo
Original:
converts a wide character to lowercase
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(funzione) [edit]
C documentation for tolower