int gd_put_carray_slice(DIRFILE *dirfile, const char *field_code,
unsigned int start, size_t len, gd_type_t data_type,
const void *data_in);
- int gd_put_carray(DIRFILE *dirfile, const char *field_code, gd_type_t data_type, const void *data_in);
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:
- unsigned 8-bit integer
- signed (two's complement) 8-bit integer
- unsigned 16-bit integer
- signed (two's complement) 16-bit integer
- unsigned 32-bit integer
- signed (two's complement) 32-bit integer
- unsigned 64-bit integer
- signed (two's complement) 64-bit integer
- IEEE-754 standard 32-bit single precision floating point number
- IEEE-754 standard 64-bit double precision floating point number
- C99-conformant 64-bit single precision complex number
- C99-conformant 128-bit double precision complex number
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).
RETURN VALUEOn 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 database.
- 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.