gd_endianness(3) GETDATA gd_endianness(3)NAMEgd_endianness — report the byte sex of fields in a dirfile
SYNOPSIS
#include <getdata.h>
unsigned long gd_endianness(DIRFILE *dirfile, int fragment_index);
DESCRIPTION
The gd_endianness() function queries a dirfile(5) database specified by
dirfile and returns the byte sex for the fragment indexed by frag‐
ment_index. The byte sex of a fragment indicate the endianness of data
stored in binary files associated with RAW fields defined in the speci‐
fied fragment. The endianness of a fragment containing no RAW fields
is not meaningful.
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_endianness() returns the byte sex of the
specified fragment, which will be either GD_BIG_ENDIAN or GD_LITTLE_EN‐
DIAN, bitwise-or'd with either GD_ARM_ENDIAN or GD_NOT_ARM_ENDIAN, in‐
dicating whether double-precision floating point data in this fragment
are stored in the old ARM middle-endian format. 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_BAD_INDEX
The supplied index was out of range.
The dirfile error may be retrieved by calling gd_error(3). A descrip‐
tive error string for the last error encountered can be obtained from a
call to gd_error_string(3).
SEE ALSOgd_alter_endianness(3), gd_getdata(3), gd_error(3), gd_error_string(3),
gd_open(3), dirfile(5), dirfile-format(5)Version 0.7.0 17 July 2010 gd_endianness(3)