C / C++ / MFC

CFile cf(sCurrImgPath, CFile::modeRead);
const int MaxBufferSize = 100000;
char cTemp[MaxBufferSize + 1];

const char *pStringToFind = "<<A>>";
size_t LengthOfStringToFind = strlen(pStringToFind);

while (pStr == NULL)
{
     iBytesRead = cf.Read(cTemp, MaxBufferSize);
     pStr = strstr(cTemp, pStringToFind);
     if ( pStr != NULL )
     {
         // Process the found item here...
         pStr += LengthOfStringToFind ; // Skip over the one we found.
     }
}

Gary R. Wheeler wrote:

2. If the file is large, read it a chunk at a time.

CFile file;
char *pBuffer = new char[file.GetLength() + 1];
file.Read(sBuffer);
sBuffer[file.GetLength()] = '\0';
file.Close();
CString str(sBuffer);
int nIndex1 = str.Find(">>");
int nIndex2 = str.Find("<<", nIndex1 + 2);
CString strData = str.Mid(nIndex1 + 2, nIndex2 - nIndex1 - 2);
or
int nNumber = atoi(str.Mid(nIndex1 + 2));

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

typedef std::vector<char> CharVec;
 
// Constructing it with enough room.
CharVec chars(MAX_PATH);
PathCanonicalize(&chars[0], pPathToCanonicalize);
 
// Sizing an already constructed vector.
chars.reserve(MAX_PATH);
PathCanonicalize(&chars[0], pPathToCanonicalize);