gd_nframes64(3) [debian man page]

gd_nframes64(3) 						      GETDATA							   gd_nframes64(3)

NAME

       gd_nframes64 -- report the size of a dirfile with largefile support

SYNOPSIS

       #define _LARGEFILE64_SOURCE

       #include <getdata.h>

       off64_t gd_nframes64(DIRFILE *dirfile);

DESCRIPTION

       This  version  of  gd_nframes(3)  uses  a  64-bit offset type, even if off_t is a 32-bit type.  It is only available if one defines _LARGE-
       FILE64_SOURCE.  If off_t is a 64-bit type (i.e. if _FILE_OFFSET_BITS is defined to be 64), this function will be called gd_nframes().  Oth-
       erwise, gd_nframes() will be a version of this function which uses a 32-bit off_t.

SEE ALSO

       gd_nframes(3), feature_test_macros(7)

Version 0.7.0							   16 July 2010 						   gd_nframes64(3)

gd_nframes(3)							      GETDATA							     gd_nframes(3)

NAME

       gd_nframes -- report the size of a dirfile

SYNOPSIS

       #include <getdata.h>

       off_t gd_nframes(DIRFILE *dirfile);

DESCRIPTION

       The  gd_nframes() function queries a dirfile(5) database specified by dirfile and returns the number of frames in the database.	Since dif-
       ferent fields may have differing number of frames, the Dirfile Standards (see dirfile(5)) dictate that the number of frames in the database
       is defined to be equal to the number of frames in the reference field defined by the /REFERENCE directive (see dirfile-format(5)) or, if no
       such reference field is defined, by the first raw field specified in the format specification.

       If no vector fields are defined in the database, gd_nframes() returns zero and succeeds.

       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_nframes() returns the number of frames in the dirfile.  On error, it returns zero 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_RAW_IO
	       An attempt to stat(2) the file associated with the reference field failed.

       GD_E_UNKNOWN_ENCODING
	       The  size  of the decoded data file associated with the reference field could not be not be determined because its encoding was not
	       understood.

       GD_E_UNSUPPORTED
	       The size of the decoded data file associated with the reference field could not be not be determined because its encoding  was  not
	       supported.

       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

       dirfile(5), dirfile-encoding(5), gd_open(3), gd_bof(3), gd_eof(3), gd_error(3), gd_error_string(3)

Version 0.7.0							   22 July 2010 						     gd_nframes(3)