ReadFile for expressions of folklore

I use the function ReadFile read in ASCII mode. ReadFile account CR + LF as a LF.
The byteRead are always less than the size of the file that is obtained with the help of GetFileInfo(). The read data is so not until the end of the file.
The loop in this case never go out because there are always a few bytes to read due to.

How can I use ReadFile to read all the content of the file in ASCII mode or set the pointer to consideras two bytes?

Get the size of the file
status = GetFileInfo (* patternFilePath, (ssize_t *) file size);

Open the file
localFileHdl = OpenFile (* patternFilePath, VAL_READ_ONLY, VAL_OPEN_AS_IS, VAL_ASCII);

char * nextPositionToWrite = * patternFileContents;
size_t leftOverToRead = (size_t) * file size;

{}
Read the file
bufLen = ReadFile (localFileHdl, nextPositionToWrite, leftOverToRead);
leftOverToRead = leftOverToRead - bufLen;
nextPositionToWrite = nextPositionToWrite + bufLen;
} while (leftOverToRead > 0);

Close file
errChk (closeFile(f) (localFileHdl));

A single ReadFile as your poster the contents of the entire file, provided the buffer is large enough, regardless of what account the return from the call.

County of back play only if you have read the file in loop: in this case, given that ReadFile treated pair CR + LF as a single character and therefore does not count the CR, the code should work with

leftOverToRead-= + 1 bufLen;

Tags: NI Software

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