5.26 Learn About an Opaque Type: nc_inq_opaque
Given a typeid, get the information about an opaque type.
Usage
int nc_inq_opaque(int ncid, nc_type xtype, char *name, size_t *sizep);
ncid- The ncid for the group containing the opaque type.
xtype- The typeid for this opaque type, as returned by nc_def_compound, or
nc_inq_var.
name- If non-NULL, the name of the opaque type will be copied here. It will
be NC_MAX_NAME bytes or less.
sizep- If non-NULL, the size of the opaque type will be copied here.
Errors
NC_NOERR- No error.
NC_EBADTYPEID- Bad typeid.
NC_EBADFIELDID- Bad fieldid.
NC_EHDFERR- An error was reported by the HDF5 layer.
Example
This example is from test program libsrc4/tst_opaques.c:
if (nc_def_opaque(ncid, BASE_SIZE, TYPE_NAME, &xtype)) ERR;
if (nc_inq_opaque(ncid, xtype, name_in, &base_size_in)) ERR;
if (strcmp(name_in, TYPE_NAME) || base_size_in != BASE_SIZE) ERR;
