set_logtalk_flag/2

Description

set_logtalk_flag(Flag, Value)

Sets local flag values. The scope of this directive is the entity or the source file containing it. For global scope, use the corresponding set_logtalk_flag/2 built-in predicate called from an initialization/1 directive. For a description of the predefined compiler flags, please see the Compiler flags section in the User Manual.

Template and modes

set_logtalk_flag(+atom, +nonvar)

Errors

Flag is a variable:
instantiation_error
Value is a variable:
instantiation_error
Flag is not an atom:
type_error(atom, Flag)
Flag is neither a variable nor a valid flag:
domain_error(flag, Flag)
Value is not a valid value for flag Flag:
domain_error(flag_value, Flag + Value)
Flag is a read-only flag:
permission_error(modify, flag, Flag)

Examples

% turn off the compiler unknown entity warnings
% during the compilation of the source file:
:- set_logtalk_flag(unknown_entities, silent).


:- object(...).

    % generate events for messages sent from this object:
    :- set_logtalk_flag(events, allow).
    ...