built-in predicate
set_logtalk_flag/2
ï
Descriptionï
set_logtalk_flag(Flag, Value)
Sets global, default, flag values. For local flag scope, use the corresponding set_logtalk_flag/2 directive. To set a global flag value when compiling and loading a source file, wrap the calls to this built-in predicate with an initialization/1 directive. For a description of the predefined compiler flags, please see the Compiler flags section in the User Manual.
Modes and number of proofsï
set_logtalk_flag(+atom, +nonvar) - one
Errorsï
Flag
is a variable:instantiation_error
Value
is a variable:instantiation_error
Flag
is neither a variable nor an atom:type_error(atom, Flag)
Flag
is an atom but an invalid 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)
Examplesï
% turn off globally and by default the compiler
% unknown entities warnings:
| ?- set_logtalk_flag(unknown_entities, silent).
See also