std::btowc – cppreference.com

std::btowc

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<metanoindex/>

 
C++
 
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
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Wide/multibyte conversions
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mbsinit
Types
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Types
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mbstate_t
 
<tbody> </tbody>
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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Parameter

c -
Single-Byte-Zeichen zu erweitern
Original:
single-byte character to widen
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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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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

Siehe auch