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std::btowc

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< cpp‎ | string‎ | multibyte

 
 
Strings Bibliothek
Null-terminierte Strings
Original:
Null-terminated strings
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Byte-Strings
Multibyte-Strings
Wide Strings
Classes
Original:
Classes
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basic_string
char_traits
 
Nullterminierten Multibyte Strings
Wide / Multibyte Konvertierungen
Original:
Wide/multibyte conversions
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mbsinit
Types
Original:
Types
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mbstate_t
 
definiert in Header <cwchar>
std::wint_t btowc( int c );
Weitet sich eine Single-Byte-Zeichen c seiner breiten Charakter entspricht .
Original:
Widens a single-byte character c to its wide character equivalent.
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Die meisten Multibyte-Zeichenkodierung verwenden Single-Byte-Codes, um die Zeichen aus dem ASCII-Zeichensatz darstellen. Diese Funktion kann verwendet werden, um solche Schriftzeichen wchar_t umzuwandeln .
Original:
Most multibyte character encodings use single-byte codes to represent the characters from the ASCII character set. This function may be used to convert such characters to wchar_t.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

c -
Single-Byte-Zeichen zu erweitern
Original:
single-byte character to widen
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[Bearbeiten] Rückgabewert

WEOF if c is EOF.

Wide character Darstellung c wenn (unsigned char)c ist eine gültige Single-Byte-Zeichen in der ursprünglichen Schaltzustand WEOF sonst .
Original:
Wide character representation of c if (unsigned char)c is a valid single-byte character in the initial shift state, WEOF otherwise.
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[Bearbeiten] Beispiel

#include <cwchar>
#include <cstdio>
#include <clocale>
 
int main()
{
    std::setlocale(LC_ALL, "");
    std::wprintf(L"wide: %lc\nwidened from narrow: %lc\n", L'a', std::btowc('a'));
}

Output:

wide: a
widened from narrow: a

[Bearbeiten] Siehe auch

verengt eine breite Charakter zu einem Single-Byte engen Charakter, wenn möglich
Original:
narrows a wide character to a single-byte narrow character, if possible
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(Funktion) [edit]
[virtuell]
wandelt ein Zeichen oder Zeichen aus char um charT
Original:
converts a character or characters from char to charT
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(virtuellen geschützten Member-Funktion of std::ctype) [edit]
C documentation for btowc