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std::tolower<div class="t-tr-text">(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

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< cpp‎ | locale

 
 
Bibliothèque localisations
Locales et facettes
Original:
Locales and facets
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locale
Classification des caractères
Original:
Character classification
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Conversions
Original:
Conversions
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toupper
tolower
Classes de facettes catégorie de base
Original:
Facet category base classes
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Catégories de facettes
Original:
Facet categories
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Spécifique aux paramètres régionaux facettes
Original:
Locale-specific facets
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Facettes de conversion de code
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Code conversion facets
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codecvt_utf8 (C++11)
codecvt_utf16 (C++11)
C locale
Original:
C locale
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Defined in header <locale>
template< class charT >
charT tolower( charT ch, const locale& loc );
Convertit le ch caractère en minuscule si possible, en utilisant les règles de conversion prévues par facette std::ctype l'endroit donné de .
Original:
Converts the character ch to lowercase if possible, using the conversion rules specified by the given locale's std::ctype facet.
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Sommaire

[modifier] Paramètres

ch -
caractère
Original:
character
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loc -
locale
Original:
locale
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[modifier] Retourne la valeur

Renvoie la forme de minuscules ch si l'on est inscrit dans la localisation, sinon retourner ch inchangé .
Original:
Returns the lowercase form of ch if one is listed in the locale, otherwise return ch unchanged.
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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::tolower 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::tolower cannot be used to obtain the correct lowercase form in this case.
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[modifier] Mise en œuvre possible

template< class charT >
charT tolower( charT ch, const std::locale& loc ) {
    return std::use_facet<std::ctype<charT>>(loc).tolower(ch);
}

[modifier] Exemple

[modifier] Voir aussi

convertit un caractère en majuscules en utilisant la facette ctype d'un lieu
Original:
converts a character to uppercase using the ctype facet of a locale
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(fonction générique) [edit]
convertit un caractère en minuscule
Original:
converts a character to lowercase
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(fonction) [edit]
convertit le caractère large en minuscules
Original:
converts a wide character to lowercase
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(fonction) [edit]