std::wbuffer_convert::wbuffer_convert
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<tbody> </tbody> wbuffer_convert( std::streambuf* bytebuf = 0, Codecvt* pcvt = new Codecvt, state_type state = state_type() ); |
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Construit l'objet
wbuffer_convert avec le flux d'octets sous-jacent déterminé, facette codecvt spécifié et déterminé l'état de conversion initial (tous les paramètres sont optionnels)Original:
Constructs the
wbuffer_convert object with the specified underlying byte stream, specified codecvt facet, and specified initial conversion state (all parameters are optional)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Paramètres
| bytebuf | - | pointeur sur std :: streambuf pour servir le flux de caractères étroite sous-jacent
Original: pointer to std::streambuf to serve as the underlying narrow character stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| pcvt | - | pointeur vers un standalone (non géré par un paramètre régional) std::codecvt facette
Original: pointer to a standalone (not managed by a locale) std::codecvt facet The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| state | - | la valeur initiale de l'état de conversion de caractères
Original: the initial value of the character conversion state The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Exemple
#include <iostream>
#include <sstream>
#include <locale>
#include <codecvt>
int main()
{
// wrap a UTF-8 string stream in a UCS4 wbuffer_convert
std::stringbuf utf8buf(u8"z\u00df\u6c34\U0001d10b"); // or u8"zß水𝄋"
// or "\x7a\xc3\x9f\xe6\xb0\xb4\xf0\x9d\x84\x8b";
std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv_in(&utf8buf);
std::wistream ucsbuf(&conv_in);
std::cout << "Reading from a UTF-8 stringbuf via wbuffer_convert:\n";
for(wchar_t c; ucsbuf.get(c); )
std::cout << std::hex << std::showbase << c << '\n';
// wrap a UTF-8 aware std::cout in a UCS4 wbuffer_convert to output UCS4
std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv_out(std::cout.rdbuf());
std::wostream out(&conv_out);
std::cout << "Sending UCS4 data to std::cout via wbuffer_convert:\n";
out << L"z\u00df\u6c34\U0001d10b\n";
}
Résultat :
Reading from a UTF-8 stringbuf via wbuffer_convert produces
0x7a
0xdf
0x6c34
0x1d10b
Sending UCS4 data to std::cout via wbuffer_convert:
zß水𝄋