std::towlower
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| Déclaré dans l'en-tête <cwctype>
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| std::wint_t towlower( std::wint_t ch ); |
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Convertit le caractère large en minuscules, si possible .
Original:
Converts the given wide character to lowercase, if possible.
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Sommaire |
[modifier] Paramètres
| ch | - | caractère large à convertir
Original: wide 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. |
[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.The text has been machine-translated via Google Translate.
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[modifier] Notes
Seulement 1:1 mappage de caractères peut être effectuée par cette fonction, par exemple, la lettre majuscule grecque Σ 'a deux formes minuscules, en fonction de la position dans un mot: «σ» et «ς». Un appel à std::towlower ne peut pas être utilisé pour obtenir la forme correcte minuscules dans cette affaire .
Original:
Only 1:1 character mapping can be performed by this function, e.g. the Greek uppercase letter 'Σ' has two lowercase forms, depending on the position in a word: 'σ' and 'ς'. A call to std::towlower cannot be used to obtain the correct lowercase form in this case.
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[modifier] Exemple
#include <iostream> #include <cwctype> #include <clocale> int main() { wchar_t c = L'\u0190'; // Latin capital open E ('Ɛ') std::cout << std::hex << std::showbase; std::cout << "in the default locale, towlower(" << (std::wint_t)c << ") = " << std::towlower(c) << '\n'; std::setlocale(LC_ALL, "en_US.utf8"); std::cout << "in Unicode locale, towlower(" << (std::wint_t)c << ") = " << std::towlower(c) << '\n'; }
Résultat :
in the default locale, towlower(0x190) = 0x190 in Unicode locale, towlower(0x190) = 0x25b
[modifier] Voir aussi
| convertit le caractère large en majuscules Original: converts a wide 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. (fonction) | |
| converts a character to lowercase using the ctype facet of a locale (fonction générique) | |
| convertit un caractère en minuscule Original: converts a 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. (fonction) | |
| C documentation for towlower
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