681 lines
28 KiB
C++
681 lines
28 KiB
C++
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// FILE: tstring.h
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// AUTHOR: Davepl
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// REMARKS:
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//
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//
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// This header file declares the tstring class. This string class is
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// derived from the Standard C++ Libarary string classes (one of them)
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// and adds to them the MFC CString conveniences of
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//
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// - UNICODE support and
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// - implicit casts to PCTSTR
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// - loading from resource files
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// - formatting (via Format()) function.
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// - writing to/reading from COM IStream interfaces
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// - Functional objects for use in STL algorithms
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//
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// This header also declares our own version of the MFC/ATL UNICODE-MBCS
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// conversion macros. Our version looks exactly like the originals in order
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// facilitate portability.
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//
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// (c) 1999 Dave Plummer. Portions of this code derived from source
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// produced by Joe O'Leary with the following license:
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// > This code is free. Use it anywhere you want. Rewrite
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// > it, restructure it, whatever you want.
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#ifndef _STDSTRING_H_
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#define _STDSTRING_H_
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// Turn off browser references
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#ifdef _MSC_VER
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#pragma component(browser, off, references, "tstring")
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#endif
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// Avoid legacy code mess up -- if _UNICODE is defined, then UNICODE must be as well
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#if defined (_UNICODE) && !defined (UNICODE)
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#define UNICODE
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#endif
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#include <locale>
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#include <TCHAR.H>
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#ifndef STRICT
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#define STRICT
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#endif
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#include <windows.h>
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// In non-MFC builds, ASSERT and VERIFY probably won't be defined, so
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// check to see if they are defined and, if not, define them ourself.
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#ifndef ASSERT
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#include <crtdbg.h> // probably already included but do it just in case
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#define ASSERT(f) _ASSERTE((f))
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#endif
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#ifndef VERIFY
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#ifdef _DEBUG
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#define VERIFY(x) ASSERT((x))
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#else
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#define VERIFY(x) x
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#endif
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#endif
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#ifndef TRACE
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#define TRACE
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#endif
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#include <functional> // needed for tstring_lessnocase, et al
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// If this is a recent enough version of VC include comdef.h, we can write many tstring
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// functions to deal with COM types and compiler support classes like _bstr_t
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#if defined (_MSC_VER) && (_MSC_VER >= 1100)
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#include <comdef.h>
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#define STDSTRING_INC_COMDEF // signal that we #included MS comdef.h file
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#endif
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#ifndef PCTSTR_DEFINED
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typedef const TCHAR* PCTSTR;
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#define PCTSTR_DEFINED
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#endif
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#ifndef PCOLESTR
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#define PCOLESTR LPCOLESTR
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#endif
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#ifndef POLESTR
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#define POLESTR LPOLESTR
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#endif
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// UNICODE/MBCS conversion macros. These are made to work just like the MFC/ATL ones. We
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// will not define them if
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// _NO_STDCONVERSION - the developer explicitly turned them off
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// USES_CONVERSION - this is an ATL/MFC build and they are already defined
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#ifndef _NO_STDCONVERSION
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#if defined (USES_CONVERSION)
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#define _NO_STDCONVERSION // Let StdString.cpp know it should not compile functions
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#else
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// In MFC builds we can just use the MFC UNICODE conversion macros.
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// In NON-MFC builds will have to define them ourselves
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#include <malloc.h>
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#ifdef _MFC_VER
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#include <afxconv.h>
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#define _NO_STDCONVERSION // Let StdString.cpp know it should not compile functions
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#else
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// Define our conversion macros to look exactly like the originals
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// using this stuff both with and without MFC/ATL. Avert your eyes,
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// its not pretty
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#ifndef _DEBUG
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#define USES_CONVERSION int _convert; _convert
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#else
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#define USES_CONVERSION int _convert = 0
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#endif
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PWSTR StdA2WHelper(PWSTR pw, PCSTR pa, int nChars);
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PSTR StdW2AHelper(PSTR pa, PCWSTR pw, int nChars);
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#define A2W(pa) (\
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((PCSTR)(pa) == NULL) ? NULL : (\
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_convert = (strlen((pa))+1),\
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StdA2WHelper((LPWSTR) alloca(_convert*2), (pa), _convert)))
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#define W2A(pw) (\
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((PCWSTR)(pw) == NULL) ? NULL : (\
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_convert = (wcslen((pw))+1)*2,\
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StdW2AHelper((PSTR) alloca(_convert), (pw), _convert)))
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#define A2CW(pa) ((PCWSTR)A2W((pa)))
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#define W2CA(pw) ((PCSTR)W2A((pw)))
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#ifdef _UNICODE
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#define T2A W2A
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#define A2T A2W
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inline PWSTR T2W(PTSTR p) { return p; }
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inline PTSTR W2T(PWSTR p) { return p; }
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#define T2CA W2CA
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#define A2CT A2CW
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inline PCWSTR T2CW(PCTSTR p) { return p; }
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inline PCTSTR W2CT(PCWSTR p) { return p; }
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#else
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#define T2W A2W
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#define W2T W2A
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inline PSTR T2A(PTSTR p) { return p; }
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inline PTSTR A2T(PSTR p) { return p; }
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#define T2CW A2CW
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#define W2CT W2CA
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inline PCSTR T2CA(PCTSTR p) { return p; }
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inline PCTSTR A2CT(PCSTR p) { return p; }
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#endif // #ifdef _UNICODE
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#if defined(_UNICODE)
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// in these cases the default (TCHAR) is the same as OLECHAR
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inline size_t ocslen(PCOLESTR x) { return wcslen(x); }
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inline OLECHAR* ocscpy(POLESTR dest, PCOLESTR src) { return wcscpy(dest, src); }
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inline PCOLESTR T2COLE(PCTSTR p) { return p; }
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inline PCTSTR OLE2CT(PCOLESTR p) { return p; }
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inline POLESTR T2OLE(PTSTR p) { return p; }
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inline PTSTR OLE2T(POLESTR p) { return p; }
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#elif defined(OLE2ANSI)
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// in these cases the default (TCHAR) is the same as OLECHAR
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inline size_t ocslen(PCOLESTR x) { return strlen(x); }
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inline OLECHAR* ocscpy(POLESTR dest, LPCOLESTR src) { return strcpy(dest, src); }
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inline PCOLESTR T2COLE(PCTSTR p) { return p; }
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inline PCTSTR OLE2CT(PCOLESTR p) { return p; }
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inline POLESTR T2OLE(PTSTR p) { return p; }
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inline PTSTR OLE2T(POLESTR p) { return p; }
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#else
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inline size_t ocslen(PCOLESTR x) { return wcslen(x); }
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inline OLECHAR* ocscpy(POLESTR dest, PCOLESTR src)
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{return (POLESTR) memcpy(dest, src, (wcslen(src)+1)*sizeof(WCHAR));}
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//CharNextW doesn't work on Win95 so we use this
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#define T2COLE(pa) A2CW((pa))
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#define T2OLE(pa) A2W((pa))
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#define OLE2CT(po) W2CA((po))
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#define OLE2T(po) W2A((po))
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#endif
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#ifdef OLE2ANSI
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inline POLESTR A2OLE(PSTR p) { return p;}
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inline PSTR OLE2A(POLESTR p) { return p;}
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#define W2OLE W2A
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#define OLE2W A2W
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inline PCOLESTR A2COLE(PCSTR p) { return p;}
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inline PCSTR OLE2CA(PCOLESTR p) { return p;}
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#define W2COLE W2CA
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#define OLE2CW A2CW
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#else
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inline POLESTR W2OLE(PWSTR p) { return p; }
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inline PWSTR OLE2W(POLESTR p) { return p; }
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#define A2OLE A2W
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#define OLE2A W2A
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inline PCOLESTR W2COLE(PCWSTR p) { return p; }
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inline PCWSTR OLE2CW(PCOLESTR p) { return p; }
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#define A2COLE A2CW
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#define OLE2CA W2CA
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#endif
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inline BSTR OLE2BSTR(PCOLESTR p) {return ::SysAllocString(p);}
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#if defined(_UNICODE)
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// in these cases the default (TCHAR) is the same as OLECHAR
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inline BSTR T2BSTR(PCTSTR p) {return ::SysAllocString(p);}
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inline BSTR A2BSTR(PCSTR p) {USES_CONVERSION; return ::SysAllocString(A2COLE(p));}
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inline BSTR W2BSTR(PCWSTR p) {return ::SysAllocString(p);}
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#elif defined(OLE2ANSI)
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// in these cases the default (TCHAR) is the same as OLECHAR
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inline BSTR T2BSTR(PCTSTR p) {return ::SysAllocString(p);}
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inline BSTR A2BSTR(PCSTR p) {return ::SysAllocString(p);}
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inline BSTR W2BSTR(PCWSTR p) {USES_CONVERSION; return ::SysAllocString(W2COLE(p));}
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#else
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inline BSTR T2BSTR(PCTSTR p) {USES_CONVERSION; return ::SysAllocString(T2COLE(p));}
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inline BSTR A2BSTR(PCSTR p) {USES_CONVERSION; return ::SysAllocString(A2COLE(p));}
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inline BSTR W2BSTR(PCWSTR p) {return ::SysAllocString(p);}
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#endif
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#endif // #ifdef _MFC_VER
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#endif // #ifndef USES_CONVERSION
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#endif // #ifndef _NO_STDCONVERSION
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// Define our own macros for "other" type to TCHAR type conversion
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// i.e. in a UNICODE build "other" would be char. In a non-UNICODE
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// build, "other" would be wchar_t These macros make the declaration
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// of the tstring class a lot cleaner
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#ifdef _UNICODE
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#define O2T A2T // "other" type string to generic text type string
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#define O2CT A2CT // constant "other" type string to generic text type string
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#define T2O T2A // generic text type string to "other" type string.
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#define T2CO T2CA // generic text type string to constant "other type string.
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#else
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#define O2T W2T
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#define O2CT W2CT
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#define T2O T2W
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#define T2CO T2CW
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#endif
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// Define some short names for types that we will refer to in our definition of
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// the tstring class.
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#ifdef _UNICODE
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#define TOTHER char // the "other" char type (opposite of TCHAR)
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#define POSTR PSTR // the "other" string type (opposite of PTSTR)
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#define PCOSTR PCSTR // the "other" const string type (oppsite of PCTSTR)
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const PCOSTR szONull = ""; // an empty string of the "other" type.
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#else
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#define TOTHER wchar_t
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#define POSTR PWSTR
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#define PCOSTR PCWSTR
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const PCOSTR szONull = L"";
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#endif
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const PCTSTR szTNull = _T(""); // an empty string of the TCHAR type
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typedef std::basic_string<TCHAR> STRBASE; // our base class
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typedef std::basic_string<TOTHER> STROTHER; // opposite of our base
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// Define TSTRING -- this is a basic_string built around the TCHAR type, kind of like MFC CString
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// It is also our base class.
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#ifndef _TSTRING_DEFINED_
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#define _TSTRING_DEFINED_
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typedef std::basic_string<TCHAR> TSTRING;
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#endif
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// tstring class
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//
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// This class is a simplified version of the Standard C++ Library string or basic string class. It
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// is derived from basic_string<TCHAR> and adds some MFC CString-like functionality
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class tstring : public STRBASE
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{
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public:
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typedef std::allocator<TCHAR> MYALLOC;
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// constructors
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tstring();
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tstring(const tstring& str);
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tstring(const STRBASE& str);
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tstring(const STROTHER& str);
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tstring(PCTSTR pT);
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tstring(PCOSTR pO);
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tstring(const_iterator first, const_iterator last);
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tstring(size_type nSize, value_type ch, const allocator_type& al=std::allocator<TCHAR>());
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tstring(UINT nId);
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#ifdef STDSTRING_INC_COMDEF
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tstring(const _bstr_t& bstr); // takes the _bstr_t MS compiler COM support class
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#endif
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// assignment operators
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tstring& operator=(const tstring& str); // copy constructor
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tstring& operator=(const STRBASE& str); // takes a base std string type (string or wstring)
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tstring& operator=(const STROTHER& str); // takes the other std string type (string or wstring)
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tstring& operator=(PCTSTR pT); // takes const TCHAR pointer
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tstring& operator=(PCOSTR pO); // takes const pointer to "other" type (opposite of PCTSTR)
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tstring& operator=(TCHAR); // takes single character of TCHAR type
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tstring& operator=(TOTHER); // takes single character of the "other" type
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#ifdef STDSTRING_INC_COMDEF
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tstring& operator=(const _bstr_t& bstr); // takes the _bstr_t MS compiler COM support class
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#endif
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// These overloads are also needed to fix the MSVC assignment bug (only for our STL - See KB: Q172398)
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tstring& assign(const tstring& str, tstring::size_type nStart, tstring::size_type nChars);
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tstring& assign(PCTSTR pT, tstring::size_type nChars);
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tstring& assign(tstring::size_type nChars, tstring::value_type val);
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tstring& assign(const tstring& str);
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tstring& assign(PCTSTR pT);
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tstring& assign(tstring::const_iterator iterFirst, tstring::const_iterator iterLast);
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// comparison (equality)
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bool operator==(const tstring& str) const;
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bool operator==(const STRBASE& str) const;
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bool operator==(const STROTHER& str) const;
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bool operator==(PCTSTR pT) const;
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bool operator==(PCOSTR pO) const;
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bool operator==(TCHAR t) const;
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bool operator==(TOTHER t) const;
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// Note the default here is case INsensitive
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bool Equals(PCTSTR pT, bool bUseCase=false) const;
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// comparison operators (inequality)
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bool operator!=(const tstring& str) const;
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bool operator!=(const STRBASE& str) const;
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bool operator!=(const STROTHER& str) const;
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bool operator!=(PCTSTR pT) const;
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bool operator!=(PCOSTR pO) const;
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bool operator!=(TCHAR t) const;
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bool operator!=(TOTHER t) const;
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// comparison operator (less than)
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bool operator<(const tstring& str) const;
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bool operator<(PCTSTR str) const;
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// concatenation.
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const tstring& operator+=(const tstring& str);
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const tstring& operator+=(const STRBASE& str);
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const tstring& operator+=(const STROTHER& str);
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const tstring& operator+=(PCTSTR pT);
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const tstring& operator+=(PCOSTR pO);
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const tstring& operator+=(TCHAR t);
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const tstring& operator+=(TOTHER t);
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#ifdef STDSTRING_INC_COMDEF
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const tstring& operator+=(const _bstr_t& bstr);
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#endif
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// addition operators -- global friend functions.
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friend tstring operator+(const tstring& str1, const tstring& str2);
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friend tstring operator+(const tstring& str, TCHAR ch);
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friend tstring operator+(TCHAR ch, const tstring& str);
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friend tstring operator+(const tstring& str, TOTHER ch);
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friend tstring operator+(TOTHER ch, const tstring& str);
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friend tstring operator+(const tstring& str, PCTSTR sz);
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friend tstring operator+(PCTSTR sz, const tstring& str);
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friend tstring operator+(const tstring& str, PCOSTR sz);
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friend tstring operator+(PCOSTR sz, const tstring& str);
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#ifdef STDSTRING_INC_COMDEF
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friend tstring operator+(const _bstr_t& bstr, const tstring& str);
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friend tstring operator+(const tstring& str, const _bstr_t& bstr);
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#endif
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// Conversion to "other" type of string (i.e. to string if we're a wstring, to wstring if we're a string)
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STROTHER Other() const
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{
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USES_CONVERSION;
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return T2CO(c_str());
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};
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// General utility stuff
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LPTSTR GetBuffer(int n = -1)
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{
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if ( (-1 != n) && (n > (int)length()) )
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resize(n);
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return (LPTSTR) data();
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}
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void ReleaseBuffer( int n = -1 )
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{
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if (-1 == n)
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n = _tcslen( data() );
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resize(n);
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}
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operator CComBSTR() const
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{
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PCTSTR pFoo = *this;
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return CComBSTR( pFoo );
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}
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operator PCTSTR() const; // implicit cast to const TCHAR*
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bool Load(UINT nId); // load using resource id
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tstring& Format(PCTSTR szFormat, ...); // format using literal string
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tstring& Format(UINT nId, ...); // format using resource string identifier
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tstring& FormatV(PCTSTR szFormat, va_list argList); // format using a va_list instead of ...
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tstring& TrimRight(); // chop off all whitespace characters on right
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tstring& TrimLeft(); // chop off all whitespace characters on left
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tstring& ToUpper(); // make uppercase
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tstring& ToLower(); // make lowercase
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bool IsEmpty() const { return empty(); };
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TCHAR& operator[](int nIdx);
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const TCHAR& operator[](int nIdx) const;
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#ifdef STDSTRING_INC_COMDEF
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HRESULT StreamSave(IStream* pStream) const; // write to an IStream
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HRESULT StreamLoad(IStream* pStream); // read from an IStream;
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ULONG StreamSize() const; // how many bytes needed to write to an IStream?
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#endif
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// These static functions simplify copying one C-style string to another, either one or two byte.
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static void CopyString(PCTSTR p_szSource, PTSTR p_szDest, int p_nMaxChars=0);
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static void CopyString(PCOSTR p_szSource, POSTR p_szDest, int p_nMaxChars=0);
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static void CopyString(PCSTR p_szSource, PWSTR p_szDest, int p_nMaxChars=0);
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static void CopyString(PCWSTR p_szSource, PSTR, int p_nMaxChars=0);
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// If this is NOT an MFC build, provide a SetResourceHandle function so that those who call
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// the versions of Load(), Format(), or the constructor that take resource IDs can provide
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// an alternate HINST of a DLL to search. This is not exactly the list of link libraries
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// that MFC provides but it's better than nothing.
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static void SetResourceHandle(HINSTANCE hNew);
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static HINSTANCE GetResourceHandle();
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protected:
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#if !defined(_MFC_VER)
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static HINSTANCE hInstResource; // implementation of Get/SetResourceHandle in non-MFC builds
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#endif
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};
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#define _TRES(pctstr) (LOWORD((pctstr))) // shorthand conversion from PCTSTR to string resource ID
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// tstring inline constructors
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inline tstring::tstring() {}
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inline tstring::tstring(const STRBASE& str) { *this = str; };
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//inline tstring::tstring(PCTSTR pT) { *this = (pT == NULL ? szTNull : pT); };
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inline tstring::tstring(PCOSTR pO) { *this = (pO == NULL ? szONull : pO); };
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inline tstring::tstring(const tstring& str) { *this = str; };
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inline tstring::tstring(const STROTHER& str) { *this = str; };
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inline tstring::tstring(const_iterator first, const_iterator last) : STRBASE(first, last) {};
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inline tstring::tstring(size_type nSize, value_type ch, const allocator_type& al) : STRBASE(nSize, ch, al) { }
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#ifdef STDSTRING_INC_COMDEF
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inline tstring::tstring(const _bstr_t& bstr) { *this = static_cast<PCTSTR>(bstr); }
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#endif
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// tstring inline assignment operators -- the erase() function
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// call fixes the MSVC assignment bug (see knowledge base article Q172398).
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inline tstring& tstring::operator=(const tstring& str)
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{ if ( str.data() != data() ) { erase(); STRBASE::assign(str.data());} return *this; };
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inline tstring& tstring::operator=(const STRBASE& str)
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{ if ( str.data() != data() ) { erase(); STRBASE::assign(str.data());} return *this; };
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inline tstring& tstring::operator=(const STROTHER& str)
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{ erase(); USES_CONVERSION; STRBASE::assign(O2CT(str.data())); return *this; };
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inline tstring& tstring::operator=(PCTSTR pT)
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{ if ( pT != data() ) { erase(); if ( pT != NULL ) STRBASE::assign(pT); } return *this; };
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inline tstring& tstring::operator=(PCOSTR pO)
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{ erase(); if ( pO != NULL ) { USES_CONVERSION; STRBASE::assign(O2CT(pO)); } return *this; };
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inline tstring& tstring::operator=(TOTHER t)
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{ erase(); USES_CONVERSION; STRBASE::assign(O2CT(&t)); return *this; };
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inline tstring& tstring::operator=(TCHAR t)
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{ erase(); STRBASE::assign(1,t); return *this; };
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#ifdef STDSTRING_INC_COMDEF
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inline tstring& tstring::operator=(const _bstr_t& bstr)
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{ return operator=(static_cast<PCTSTR>(bstr)); }
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#endif
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// These overloads are also needed to fix the MSVC assignment bug (KB: Q172398)
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// *** Thanks to Pete The Plumber for catching this one ***
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inline tstring& tstring::assign(const tstring& str, tstring::size_type nStart, tstring::size_type nChars)
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{ if( str.data() != data() ) erase(); STRBASE::assign(str, nStart, nChars); return *this; }
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inline tstring& tstring::assign(PCTSTR pT, tstring::size_type nChars)
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{ if( pT != data() ) erase(); STRBASE::assign(pT, nChars); return *this; }
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inline tstring& tstring::assign(tstring::size_type nChars, tstring::value_type val)
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{ erase(); STRBASE::assign(nChars, val); return *this; }
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inline tstring& tstring::assign(const tstring& str)
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{ return assign(str, 0, npos); }
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inline tstring& tstring::assign(PCTSTR pT)
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{ return assign(pT, tstring::traits_type::length(pT)); }
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inline tstring& tstring::assign(tstring::const_iterator iterFirst, tstring::const_iterator iterLast)
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{ replace(begin(), end(), iterFirst, iterLast); return *this; }
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// tstring inline comparison (equality)
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inline bool tstring::operator==(const tstring& str) const
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{ return compare(str.c_str()) == 0; };
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inline bool tstring::operator==(const STRBASE& str) const
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{ return compare(str.data()) == 0; };
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inline bool tstring::operator==(const STROTHER& str) const
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{ USES_CONVERSION; return compare(O2CT(str.data())) == 0; };
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inline bool tstring::operator==(PCTSTR pT) const
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{ return compare(pT) == 0; };
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inline bool tstring::operator==(PCOSTR pO) const
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{ USES_CONVERSION; return compare(O2CT(pO)) == 0; };
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inline bool tstring::operator==(TCHAR t) const
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{ return operator==(STRBASE(1,t)); };
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inline bool tstring::operator==(TOTHER t) const
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{ USES_CONVERSION; return operator==(tstring(O2CT(&t))); };
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inline bool tstring::Equals(PCTSTR pT, bool bUseCase/*=false*/) const // defaults to case insensitive
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{ return bUseCase ? compare(pT) == 0 : _tcsicmp(tstring(*this), pT) == 0; } // get copy, THEN compare (thread safe)
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//inline bool tstring::WildcardEquals(PCTSTR pT, bool bUseCase/*=false*/) const // defaults to case insensitive
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//{ tstring me(*this), mask(pT); if( !bUseCase ) { me.ToUpper(); mask.ToUpper(); } return Wildstrcmp(me, mask); } // get copy, THEN compare (thread safe)
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// tstring inline comparison operators (inequality)
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inline bool tstring::operator!=(const tstring& str) const
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{ return compare(str.c_str()) != 0; };
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inline bool tstring::operator!=(const STRBASE& str) const
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{ return compare(str.data()) != 0; };
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inline bool tstring::operator!=(const STROTHER& str) const
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{ USES_CONVERSION; return compare(O2CT(str.data())) != 0; };
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inline bool tstring::operator!=(PCTSTR pT) const
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{ return compare(pT) != 0; };
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inline bool tstring::operator!=(PCOSTR pO) const
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{ USES_CONVERSION; return compare(O2CT(pO)) != 0; };
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inline bool tstring::operator!=(TCHAR t) const
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{ return operator!=(STRBASE(1,t)); };
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inline bool tstring::operator!=(TOTHER t) const
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{ USES_CONVERSION; return operator!=(tstring(O2CT(&t))); };
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// tstring comparison operator (less than)
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inline bool tstring::operator<(const tstring& str) const
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{ return compare(str) < 0; };
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inline bool tstring::operator<(PCTSTR str) const
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{ return compare(str) < 0; };
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// tstring inline concatenation.
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inline const tstring& tstring::operator+=(const tstring& str)
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{ append(str); return *this; };
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inline const tstring& tstring::operator+=(const STRBASE& str)
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{ append(str); return *this; };
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inline const tstring& tstring::operator+=(const STROTHER& str)
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{ USES_CONVERSION; *this += O2CT(str.c_str()); return *this; };
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inline const tstring& tstring::operator+=(PCTSTR pT)
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{ if ( pT != NULL ) append(pT); return *this; };
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inline const tstring& tstring::operator+=(PCOSTR pO)
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{ USES_CONVERSION; if ( pO != NULL ) append(O2CT(pO)); return *this; };
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inline const tstring& tstring::operator+=(TCHAR t)
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{ append(1, t); return *this; };
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inline const tstring& tstring::operator+=(TOTHER t)
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{ USES_CONVERSION; append(O2CT(&t)); return *this; };
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#ifdef STDSTRING_INC_COMDEF
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inline const tstring& tstring::operator+=(const _bstr_t& bstr)
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{ return operator+=(static_cast<PCTSTR>(bstr)); }
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#endif
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// tstring friend addition functions defined as inline
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inline tstring operator+(const tstring& str1, const tstring& str2)
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{ tstring strRet(str1); return strRet.append(str2); }
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inline tstring operator+(const tstring& str, TCHAR ch)
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{ tstring strRet(str); return strRet.append(1, ch); }
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inline tstring operator+(TCHAR ch, const tstring& str)
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{ tstring strRet(1, ch); return strRet.append(str); }
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inline tstring operator+(const tstring& str, TOTHER ch)
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{ return str + STROTHER(1, ch).data(); }
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inline tstring operator+(TOTHER ch, const tstring& str)
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{ tstring strRet; strRet = ch; return strRet.append(str); }
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inline tstring operator+(const tstring& str, PCTSTR sz)
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{ tstring strRet(str); return sz == NULL ? strRet : strRet.append(sz); }
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inline tstring operator+(PCTSTR sz, const tstring& str)
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{ tstring strRet(sz); return strRet.append(str); }
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inline tstring operator+(const tstring& str, PCOSTR sz)
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{ tstring strRet(str); return strRet.append(tstring(sz)); }
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inline tstring operator+(PCOSTR sz, const tstring& str)
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{ tstring strRet(sz); return strRet.append(str); }
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#ifdef STDSTRING_INC_COMDEF
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inline tstring operator+(const _bstr_t& bstr, const tstring& str)
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{ return tstring(static_cast<PCTSTR>(bstr)) + str; }
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inline tstring operator+(const tstring& str, const _bstr_t& bstr)
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{ return str + static_cast<PCTSTR>(bstr); }
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#endif
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inline TCHAR& tstring::operator[](int nIdx) { return STRBASE::operator[](nIdx); }
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inline const TCHAR& tstring::operator[](int nIdx) const { return STRBASE::operator[](nIdx); }
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inline tstring::operator PCTSTR() const { return c_str(); }; // implicit cast to const TCHAR*
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// In MFC builds, define some global serialization operators
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#ifdef _MFC_VER
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CArchive& AFXAPI operator>>(CArchive& ar, tstring& string);
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CArchive& AFXAPI operator<<(CArchive& ar, const tstring& string);
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inline void tstring::SetResourceHandle(HINSTANCE hNew) { AfxSetResourceHandle(hNew); }
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inline HINSTANCE tstring::GetResourceHandle() { return AfxGetResourceHandle(); };
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#else
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// Because we're a template with no C file, we can't simply have a glocal static
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// HINSTANCE. Instead, we have a class-static function which in turn has a static
|
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// HINSTANCE. Since only that class-static function has access to the HINSTANCE,
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// it has the ability to set or retrieve its static HINSTANCE.
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//
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// In short, the HInstanceSingleton is static to the class, and its _hInstance
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// variable is static to the HInstanceSingleton function, so the _hInstance variable
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// is static to the class.
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inline const HINSTANCE & HInstanceSingleton(HINSTANCE hNew = NULL, bool bSet = false)
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{
|
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static HINSTANCE _hInstance = ::GetModuleHandle(NULL);
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if (bSet)
|
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_hInstance = hNew;
|
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return _hInstance;
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}
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inline void tstring::SetResourceHandle(HINSTANCE hNew)
|
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{
|
|
HInstanceSingleton(hNew, true);
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}
|
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inline HINSTANCE tstring::GetResourceHandle()
|
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{
|
|
return HInstanceSingleton();
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};
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#endif
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// Some code still refers to old names of this class -- Account for this.
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#define CSTLString tstring
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#define CW32String tstring
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// WUSysMessage -- return the system string corresponding to a system error or HRESULT value.
|
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tstring WUSysMessage(DWORD dwError, DWORD p_dwLangId=MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT));
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// WUFormat -- creates and formats a tstring with one line of code instead of the two it normally takes
|
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tstring WUFormat(PCTSTR szFormat, ...);
|
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tstring WUFormat(UINT nId, ...);
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|
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// Functional Comparators
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//
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// These structs are derived from the std::binary_function template. They give us functional
|
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// classes (which may be used in Standard C++ Library collections and algorithms) that perform
|
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// case-insensitive comparisons of tstring objects. This is useful for maps in which the key
|
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// may be the proper string but in the wrong case.
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#define tstring_lessnocase _SSLNC // define shorter name to avoid compiler warning 4786
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#define tstring_comparenocase _SSENC // define shorter name to avoid compiler warning 4786
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struct tstring_lessnocase : std::binary_function<tstring, tstring, bool>
|
|
{
|
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bool operator()(const tstring& strFirst, const tstring& strSecond) const
|
|
{
|
|
return _tcsicmp(strFirst, strSecond) < 0;
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|
}
|
|
};
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struct tstring_comparenocase : std::binary_function<tstring, tstring, bool>
|
|
{
|
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bool operator()(const tstring& strFirst, const tstring& strSecond) const
|
|
{
|
|
return _tcsicmp(strFirst, strSecond) == 0;
|
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}
|
|
};
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#endif // #ifndef _STDSTRING_H_
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