使用c++11标准库转换字符编码
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typedef std::codecvt<wchar_t, char, mbstate_t> convert_facet; mbstate_t in_state = 0; auto result = std::use_facet<convert_facet>(sys_locale).in( in_state, data_from, data_from_end, data_from_next, data_to, data_to_end, data_to_next ); if( result == convert_facet::ok ) { std::wstring dst = data_to; delete[] data_to; return dst; } else { printf( "convert error!\n" ); delete[] data_to; return std::wstring(L""); } }
{ std::wstring_convert<std::codecvt_utf8<wchar_t> > conv; return conv.from_bytes( src ); }
遇到0X2C 0XA0的UTF8字符编码进行特殊处理，转换成普通空格。
const wchar_t* data_from = src.c_str(); const wchar_t* data_from_end = src.c_str() + src.size(); const wchar_t* data_from_next = 0;
int wchar_size = 4; char* data_to = new char[(src.size() + 1) * wchar_size]; char* data_to_end = data_to + Байду номын сангаасsrc.size() + 1) * wchar_size; char* data_to_next = 0;
const std::wstring s2ws( const std::string& src ) { std::locale sys_locale("");
const char* data_from = src.c_str(); const char* data_from_end = src.c_str() + src.size(); const char* data_from_next = 0;
const std::string ws2utf8( const std::wstring& src ) { std::wstring_convert<std::codecvt_utf8<wchar_t>> conv; return conv.to_bytes( src ); }
const std::wstring utf8_2_ws( const std::string& src )
memset( data_to, 0, (src.size() + 1) * wchar_size );
typedef std::codecvt<wchar_t, char, mbstate_t> convert_facet; mbstate_t out_state = 0; auto result = std::use_facet<convert_facet>(sys_locale).out( out_state, data_from, data_from_end, data_from_next, data_to, data_to_end, data_to_next ); if( result == convert_facet::ok ) { std::string dst = data_to; delete[] data_to; return dst; } else { printf( "convert error!\n" ); delete[] data_to; return std::string(""); } }
wchar_t* data_to = new wchar_t[src.size() + 1]; wchar_t* data_to_end = data_to + src.size() + 1; wchar_t* data_to_next = 0;
wmemset( data_to, 0, src.size() + 1 );
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使用 c++11标准库转换字符编码
#include <stdio.h> #include <locale> #include <codecvt>
const std::string ws2s( const std::wstring& src ) { std::locale sys_locale("");
{ std::wstring_convert<std::codecvt_utf8<wchar_t> > conv; return conv.from_bytes( src ); }
遇到0X2C 0XA0的UTF8字符编码进行特殊处理，转换成普通空格。
const wchar_t* data_from = src.c_str(); const wchar_t* data_from_end = src.c_str() + src.size(); const wchar_t* data_from_next = 0;
int wchar_size = 4; char* data_to = new char[(src.size() + 1) * wchar_size]; char* data_to_end = data_to + Байду номын сангаасsrc.size() + 1) * wchar_size; char* data_to_next = 0;
const std::wstring s2ws( const std::string& src ) { std::locale sys_locale("");
const char* data_from = src.c_str(); const char* data_from_end = src.c_str() + src.size(); const char* data_from_next = 0;
const std::string ws2utf8( const std::wstring& src ) { std::wstring_convert<std::codecvt_utf8<wchar_t>> conv; return conv.to_bytes( src ); }
const std::wstring utf8_2_ws( const std::string& src )
memset( data_to, 0, (src.size() + 1) * wchar_size );
typedef std::codecvt<wchar_t, char, mbstate_t> convert_facet; mbstate_t out_state = 0; auto result = std::use_facet<convert_facet>(sys_locale).out( out_state, data_from, data_from_end, data_from_next, data_to, data_to_end, data_to_next ); if( result == convert_facet::ok ) { std::string dst = data_to; delete[] data_to; return dst; } else { printf( "convert error!\n" ); delete[] data_to; return std::string(""); } }
wchar_t* data_to = new wchar_t[src.size() + 1]; wchar_t* data_to_end = data_to + src.size() + 1; wchar_t* data_to_next = 0;
wmemset( data_to, 0, src.size() + 1 );
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使用 c++11标准库转换字符编码
#include <stdio.h> #include <locale> #include <codecvt>
const std::string ws2s( const std::wstring& src ) { std::locale sys_locale("");