void GB.Error ( const char * error , ... )
Tells the interpreter that the current method or property must raise an error.
error is a text describing the error. This text can contain substitution patterns : each '&n' pattern, n being in the 1...9 interval, will be replaced by the nth optional argument of GB.Error
.
Be careful ! This functions does not send any exception. You must return explicitely after calling GB.Error
if you want to abort the method or property.
Example :
/* This comes from implementation of Table.Fields.Find in the database component */ BEGIN_METHOD(CFIELD_find, GB_STRING name) ... if (THIS->create || !THIS->driver->Field.Exist(THIS->db->handle, THIS->table, field)) { GB.Error("Unknown field: &1.&2", THIS->table, field); return; } ... END_METHOD