Logtalk reference manual
Built-in predicate: set_logtalk_flag/2

set_logtalk_flag/2

Description

set_logtalk_flag(Flag, Value)

Sets Logtalk default, global, 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.

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

| ?- set_logtalk_flag(unknown_entities, silent).

See also

create_logtalk_flag/3, current_logtalk_flag/2