| Localization library | |||||||||||||||||||||||||
| Regular expressions library(C++11) | |||||||||||||||||||||||||
| Formatting library(C++20) | |||||||||||||||||||||||||
| Null-terminated sequence utilities | |||||||||||||||||||||||||
| Byte strings | |||||||||||||||||||||||||
| Multibyte strings | |||||||||||||||||||||||||
| Wide strings | |||||||||||||||||||||||||
| Primitive numeric conversions | |||||||||||||||||||||||||
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| Text encoding identifications | |||||||||||||||||||||||||
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| Member functions | ||||
wbuffer_convert::rdbuf | ||||
std::streambuf* rdbuf()const; | (1) | |
std::streambuf* rdbuf(std::streambuf* bytebuf); | (2) | |
bufptrbufptr#include <codecvt>#include <iostream>#include <locale>#include <sstream> int main(){// Convert UTF-8 to UCS4std::stringbuf utf8buf("z\u00df\u6c34\U0001d10b");// or "\x7a\xc3\x9f\xe6\xb0\xb4\xf0\x9d\x84\x8b"// or u8"zß水𝄋"std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv(&utf8buf);std::wistream ucsbuf(&conv);std::cout<<"Reading from a UTF-8 stringbuf via wbuffer_convert: "<<std::hex<<std::showbase;for(wchar_t c; ucsbuf.get(c);)std::cout<<static_cast<std::wint_t>(c)<<' '; // Reuse the same wbuffer_convert to handle UCS4 to UTF-8 output conv.rdbuf(std::cout.rdbuf());std::wostream out(&conv);std::cout<<"\nSending UCS4 data to std::cout via wbuffer_convert: "; out<< L"z\u00df\u6c34\U0001d10b\n";}
Output:
Reading from a UTF-8 stringbuf via wbuffer_convert: 0x7a 0xdf 0x6c34 0x1d10b Sending UCS4 data to std::cout via wbuffer_convert: zß水𝄋
constructs a newwbuffer_convert(public member function)[edit] |
