Processing files larger than 2.2GB.

I always used the following functions to process files:

fopen()
fclose()
fseek()
ftell()
fwrite()
fread()
fputc()
fgetc()

The limitation of (at least some of) these functions is the maximum
filesize of 2^31 bytes.

So, to solve this I use:

fopen64()
fseeko64()
ftello64()

But for the other functions I can't find theire largefile equivalents.
Can I safely assume that they are compatibel?

Unfortunately, I can't find manpages for fopen64(), fseeko64() and
ftello64();
Where can I find more information about this matter?

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