Bruce Momjian wrote:
>Andrew Dunstan wrote:
>
>
>>There is no fseeko in the Windows libraries, nor any provision in the
>>mingw headers that I can see for a 64 bit off_t. So we would need to
>>roll our own to some extent - I think we need more than just a bit of
>>configure cleverness.
>>
>>However, there is a Windows library routine to do a 64bit seek and
>>return the file position, so we could fairly easily implement fseeko and
>>ftello based on that. See
>>http://msdn.microsoft.com/library/en-us/vclib/html/_crt__lseek.2c_._lseeki64.asp
>>
>>
>
>See src/port/fseeko.c for a version built on fsetpos().
>
>
>
Yeah, I'm not made warm and fuzzy by the comments about fpos_t in
mingw's stdio.h, though:
/** An opaque data type used for storing file positions... The contents of* this type are unknown, but we (the
compiler)need to know the size* because the programmer using fgetpos and fsetpos will be setting aside* storage for
fpos_tstructres. Actually I tested using a byte array and* it is fairly evident that the fpos_t type is a long (in
CRTDLL.DLL).*Perhaps an unsigned long? TODO? It's definitely a 64-bit number in* MSVCRT however, and for now `long
long'will do.*/
But the example program on MSDN contains "pos = 14", which leads one to
assume that it really is some simple int underneath.
cheers
andrew
cheers
andrew
