Cyd
2b8ca921cb
Complete disaster-recovery snapshot: engine/game source, game data assets, VC6 toolchain + DX SDKs, build outputs, deployed game, and _UNUSED archive. Large binaries in Git LFS; text preserved byte-for-byte (core.autocrlf=false, no eol attributes). See RECOVERY.md for the one-clone rebuild procedure.
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
// This is a part of the Microsoft Foundation Classes C++ library.
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// Copyright (C) 1992-1998 Microsoft Corporation
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Microsoft Foundation Classes Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Microsoft Foundation Classes product.
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#include "stdafx.h"
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#ifdef AFX_AUX_SEG
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#pragma code_seg(AFX_AUX_SEG)
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#endif
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// AfxIsValidString() returns TRUE if the passed pointer
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// references a string of at least the given length in characters.
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// A length of -1 (the default parameter) means that the string
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// buffer's minimum length isn't known, and the function will
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// return TRUE no matter how long the string is. The memory
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// used by the string can be read-only.
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BOOL AFXAPI AfxIsValidString(LPCWSTR lpsz, int nLength /* = -1 */)
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{
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if (lpsz == NULL)
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return FALSE;
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return afxData.bWin95 || ::IsBadStringPtrW(lpsz, nLength) == 0;
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}
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// As above, but for ANSI strings.
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BOOL AFXAPI AfxIsValidString(LPCSTR lpsz, int nLength /* = -1 */)
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{
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if (lpsz == NULL)
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return FALSE;
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return ::IsBadStringPtrA(lpsz, nLength) == 0;
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}
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// AfxIsValidAddress() returns TRUE if the passed parameter points
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// to at least nBytes of accessible memory. If bReadWrite is TRUE,
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// the memory must be writeable; if bReadWrite is FALSE, the memory
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// may be const.
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BOOL AFXAPI AfxIsValidAddress(const void* lp, UINT nBytes,
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BOOL bReadWrite /* = TRUE */)
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{
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// simple version using Win-32 APIs for pointer validation.
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return (lp != NULL && !IsBadReadPtr(lp, nBytes) &&
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(!bReadWrite || !IsBadWritePtr((LPVOID)lp, nBytes)));
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}
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/////////////////////////////////////////////////////////////////////////////
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