need help simplifying an if statement Post: 302570205

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gd_frameoffset

gd_frameoffset(3)						      GETDATA							 gd_frameoffset(3)

NAME

       gd_frameoffset -- report the starting frame of fields in a dirfile

SYNOPSIS

       #include <getdata.h>

       off_t gd_frameoffset(DIRFILE *dirfile, int fragment_index);

DESCRIPTION

       The  gd_frameoffset()  function queries a dirfile(5) database specified by dirfile and returns the frame offset (see dirfile-format(5)) for
       the fragment indexed by fragment_index.	The frame offset of a fragment indicate the frame number of the first sample of data stored in bi-
       nary  files  associated	with RAW fields defined in the specified fragment.  The frame offset of a fragment containing no RAW fields is ig-
       nored.

       The dirfile argument must point to a valid DIRFILE object previously created by a call to gd_open(3).

RETURN VALUE

       Upon successful completion, gd_frameoffset() returns the frame offset of the specified fragment.  On error, it  returns	-1  and  sets  the
       dirfile error to a non-zero error value.  Possible error values are:

       GD_E_BAD_DIRFILE
	       The supplied dirfile was invalid.

       GD_E_BAD_INDEX
	       The supplied index was out of range.

       The  dirfile error may be retrieved by calling gd_error(3).  A descriptive error string for the last error encountered can be obtained from
       a call to gd_error_string(3).

SEE ALSO

       gd_alter_frameoffset(3), gd_open(3), gd_error(3), gd_error_string(3), dirfile(5), dirfile-format(5)

Version 0.7.0							   15 July 2010 						 gd_frameoffset(3)