std::tolower - cppreference.com

De cppreference.com

Definido no cabeçalho `<cctype>`

`int tolower( int ch );`

Converte o caráter dado para minúsculas de acordo com as regras de conversão de caracteres definidos pela localidade C atualmente instalado.

Original:

Converts the given character to lowercase according to the character conversion rules defined by the currently installed C locale.

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

Parâmetros

caractere a ser convertido

Original:

character to be converted

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

Versão minúscula ch ou ch não modificada se nenhuma versão minúscula é listada na localidade C atual.

Original:

Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.

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 <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';
}

Saída:

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

Veja também


toupper	converte um caracter para maiúsculas Original: converts a character to uppercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) [edit]

tolower(std::locale)	Converte um caracter para minusculo usando o aspecto ctype de uma localidade (modelo de função) [edit]

towlower	converte um caractere largo para minúsculas Original: converts a wide character to lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) [edit]

Documentação C para tolower