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std::wmemset

De cppreference.com
< cpp‎ | string‎ | wide

 
 
Bibliothèque de chaînes de caractères
Chaînes à zéro terminal
Original:
Null-terminated strings
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Les chaînes d'octets
Chaines multi-octets
Les chaînes étendues
Classes
Original:
Classes
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basic_string
char_traits
 
Chaînes à zéro terminal de large
Fonctions
Original:
Functions
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Manipulation caractère
Original:
Character manipulation
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Conversion aux formats numériques
Original:
Conversions to numeric formats
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La manipulation de chaînes
Original:
String manipulation
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La manipulation des tableaux
Original:
Array manipulation
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wmemcpy
wmemmove
wmemcmp
wmemchr
wmemset
 
Defined in header <cwchar>
wchar_t* wmemset( wchar_t* dest, wchar_t ch, std::size_t count );
Des copies ch caractère large dans chacun des premier count caractères larges de l'objet pointé par dest. Si l'objet n'est pas trivialement-copiable (par exemple, un scalaire, un tableau ou une structure C-compatible), le comportement est indéfini. Si les points dest+size+1 dehors de l'objet, le comportement est indéfini .
Original:
Copies wide character ch into each of the first count wide characters of the object pointed to by dest. If the object is not trivially-copyable (e.g., scalar, array, or a C-compatible struct), the behavior is undefined. If dest+size+1 points outside the object, the behavior is undefined.
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Sommaire

[modifier] Paramètres

dest -
pointeur vers l'objet à remplir
Original:
pointer to the object to fill
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ch -
remplir octet
Original:
fill byte
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count -
nombre d'octets à remplir
Original:
number of bytes to fill
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[modifier] Retourne la valeur

dest

[modifier] Exemple

#include <iostream>
#include <cwchar>
 
int main()
{
    int a[20];
    std::memset(a, 0, sizeof(a));
    std::cout << "a[0] = " << a[0] << '\n';
}

Résultat :

a[0] = 0

[modifier] Voir aussi

copie d'un certain nombre de caractères larges entre deux rangées ne se chevauchent pas
Original:
copies a certain amount of wide characters between two non-overlapping arrays
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(fonction) [edit]
assigne une valeur à un nombre d'éléments
Original:
assigns a value to a number of elements
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(fonction générique) [edit]
checks if a type is trivially copyable
(classe générique) [edit]
C documentation for wmemset