std::tolower

 

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isalnum isalpha islower isupper isdigit isxdigit isblank (C++11)	iscntrl isgraph isspace isprint ispunct tolower toupper
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Defined in header <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.

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Parâmetros

ch

-

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.

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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';
}

Output:

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)
tolower(std::locale)	converts a character to lowercase using the ctype facet of a locale (modelo de função)
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)
C documentation for tolower