pack_fseek man page on DragonFly

pack_fseek man page on DragonFly

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pack_fseek(3)			Allegro manual			 pack_fseek(3)

NAME
       pack_fseek - Seeks inside a stream. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       int pack_fseek(PACKFILE *f, int offset);

DESCRIPTION
       Moves  the  position  indicator	of the stream `f'. Unlike the standard
       fseek() function, this only supports forward movements relative to  the
       current	position  and in read-only streams, so don't use negative off‐
       sets. Note that seeking is very slow when reading compressed files, and
       so  should  be  avoided	unless	you are sure that the file is not com‐
       pressed. Example:

	  input_file = pack_fopen("data.bin", "r");
	  if (!input_file)
	     abort_on_error("Couldn't open binary data!");
	  /* Skip some useless header before reading data. */
	  pack_fseek(input_file, 32);

RETURN VALUE
       Returns zero on success or a negative  number  on  error,  storing  the
       error code in `errno'.

SEE ALSO
       pack_fopen(3), pack_fopen_chunk(3), expackf(3)

Allegro				 version 4.4.2			 pack_fseek(3)

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