- reporting callback
- provide train_data for train_on_file (currently always null)
- there is a possible memory leak if the callback return allocated value (e.g. string)
- convert_to_bool is used without freeing previous data
- proper testing (more iterations)
- error logging
- use log error messages when generic error is reported (fann_read_train_from_file)
- static variable (fann_default_error_log) in fannlib - TSRM problem
- use error log (fann_set_error_log) for all error messages including messages from this extension
- test if fannlib logging works (messages generated by fannlib are writtend to the file)
- use log error messages when generic error is reported (fann_read_train_from_file)
- check parameters ranges and over/underflows
- supplied longs fits to the unsigned int in fann_create_train_from_callback
- valid contants
- FANN connection_rate param for create_sparse*
- check int intervals for fann_train_on_fail
- compare PHP outputs with C outputs in all examples
- fann_print_connections - either rewrite or redirect output
- fann_print_parameters - either rewrite or redirect output
- fann_init_weights - train_data test must be done first