CStringData* pData; size_t nDataBytes; nDataBytes = (nChars+1)*nCharSize; nTotalSize = sizeof( CStringData )+nDataBytes; pData = (CStringData*)malloc( nTotalSize ); if (pData == NULL) return NULL; pData->pStringMgr = this; pData->nRefs = 1; ...
also known as double-byte character sets, DBCS). Note that for MBCS strings,CStringstill counts, returns, and manipulates strings based on 8-bit characters, and your application must interpret MBCS lead and trail bytes itself.
BSTR SysAllocStringByteLen( [in, optional] LPCSTR psz, [in] UINT len ); Parameters [in, optional] psz The string to copy, or NULL to keep the string uninitialized. [in] len The number of bytes to copy. A null character is placed afterwards, allocating a total of len plus the size...
Returnnumberofcharacterbyteswithinsuppliedcharactercount Notapplicable. _mbsnbcpy,_mbsnbcpy_l,_mbsnbcpy_s,_mbsnbcpy_s_l Copynbytesofstring Notapplicable. _mbsnbicmp,_mbsnbicmp_l Comparenbytesoftwocharacterstrings,ignoringcase Notapplicable. _mbsnbset,_mbsnbset_l Setfirstnbytesofcharacterstringtospe...
#include <afx.h> #include <vector> std::vector<BYTE> CStringToHexBytes(const CString& str) { std::vector<BYTE> hexBytes; int len = str.GetLength(); for (int i = 0; i < len; i += 2) { char high = str[i]; char low = (i + 1 <...
{staticstd::wstring_convert<codecvt> converter/*(locname)*/;returnconverter.from_bytes(s); } CString CStrCvt::s2cs(conststd::string&s) { #ifdef UNICODEreturns2ws(s).c_str();#elsereturns.c_str();#endif//UNICODE} CString CStrCvt::ws2cs(conststd::wstring&ws) ...
CString::MakeUpper void MakeUpper( ); Remarks 备注Converts this CString object to an uppercase string. 将原对象的所有小写英文字母转换为大写。(只是将小写的英文字母转换为大写,对于其它的字符不做变化,例如:大写字符,数字,汉字) Example实例 The following example demonstrates the use of CString::MakeUpper...
let bytes = s.utf8CString print(bytes) // Prints "[72, 101, 108, 108, 111, 33, 0]" bytes.withUnsafeBufferPointer { ptr in print(strlen(ptr.baseAddress!)) } // Prints "6" See Also Getting C Strings func withCString<Result>((UnsafePointer<Int8>) throws -> Result) rethrows ->...
e,具体看代码吧: CStringData* CAfxStringMgr::Allocate( int nChars, int nCharSize ) throw() { size_t nTotalSize; CStringData* pData; size_t nDataBytes; nDataBytes = (nChars+1)*nCharSize; nTotalSize = sizeof( CStringData )+nDataBytes; pData = (CStringData*)malloc( nTotalSize );...
For multibyte character sets (MBCS),GetLengthcounts each 8-bit character; that is, a lead and trail byte in one multibyte character are counted as two bytes. 但是在Unicode编码下,一旦出现中文字符,该方法就会少统计。 我试用最多的解决方法是: ...