gd_put_carray, gd_put_carray_slice — write CARRAY data to a dirfile
int gd_put_carray_slice(DIRFILE *dirfile, const char *field_code,
unsigned int start, size_t len, gd_type_t data_type, const void
int gd_put_carray(DIRFILE *dirfile, const char *field_code, gd_type_t
data_type, const void *data_in);
The gd_put_carray_slice() function writes data to a dirfile(5) database
specified by dirfile into the CARRAY scalar array field_code. The data
in the field is converted from the data type specified by data_type,
and read from in the user-supplied buffer data_in. The location of the
first element of the field into which data is stored is given by start,
and the number of elements stored is given by len. The gd_put_carray()
function behaves similarly, except the whole scalar array is written.
These interface cannot write to field represetations.
The argument data_in must point to a valid memory location containing
all the data to be written. The number of elements which will be
stored by gd_put_carray() may be obtained by calling gd_carray_len(3).
Unlike gd_putdata(3), writing data past the end of the field is not
permitted. To add data to the CARRAY, first increase its length by
calling gd_alter_carray(3), or another equivalent function.
The data_type argument should be one of the following symbols, which
indicates the type of the data pointed to by data_in:
GD_UINT8 unsigned 8-bit integer
GD_INT8 signed (two's complement) 8-bit integer
GD_UINT16 unsigned 16-bit integer
GD_INT16 signed (two's complement) 16-bit integer
GD_UINT32 unsigned 32-bit integer
GD_INT32 signed (two's complement) 32-bit integer
GD_UINT64 unsigned 64-bit integer
GD_INT64 signed (two's complement) 64-bit integer
GD_FLOAT32 IEEE-754 standard 32-bit single precision floating
GD_FLOAT64 IEEE-754 standard 64-bit double precision floating
C99-conformant 64-bit single precision complex number
C99-conformant 128-bit double precision complex
The type of the input data need not be the same as the CARRAY storage
type. Type conversion will be performed as necessary to return the
requested type. The dirfile argument must point to a valid DIRFILE
object previously created by a call to gd_open(3).
On success, gd_put_carray() and gd_put_carray_slice() return zero. On
error, they return -1 and set the dirfile error to a non-zero value.
Possible error values are:
The specified dirfile was opened read-only.
The field specified by field_code was not found in the
An invalid dirfile was supplied.
The supplied field_code referred to a field of a type other
than CARRAY. The caller should use gd_putdata(3),
gd_put_constant(3), or gd_put_string(3) instead.
A representation suffix in the field definition was invalid, or
an attempt was made to write to a representation, instead of
the underlying field.
An invalid data_type was specified.
A request for data beyond the end of the field was made.
An internal error occurred in the library while trying to
perform the task. This indicates a bug in the library. Please
report the incident to the maintainer.
The dirfile error may be retrieved by calling gd_error(3). A
descriptive error string for the last error encountered may be obtained
from a call to gd_error_string(3).
dirfile(5), gd_carray_len(3), gd_carrays(3), gd_error(3),
gd_error_string(3), gd_get_carray_slice(3), gd_open(3),