25 lines
997 B
Plaintext
25 lines
997 B
Plaintext
|
YAP Core Built-ins {#core}
|
||
|
|
=================
|
||
|
|
|
||
|
|
This chapter describes the core predicates that control the execution of
|
||
|
|
Prolog programs, provide fundamental functionality such as termm manipulation or arithmetic, and support interaction with external
|
||
|
|
resources, Many of the predicates described here have been standardised by the ISO. The standartised subset of Prolog also known as ISO-Prolog.
|
||
|
|
|
||
|
|
In the description of the arguments of predicates the following
|
||
|
|
notation will be used:
|
||
|
|
|
||
|
|
+ a preceding plus sign will denote an argument as an "input
|
||
|
|
argument" - it cannot be a free variable at the time of the call;
|
||
|
|
+ a preceding minus sign will denote an "output argument";
|
||
|
|
+ an argument with no preceding symbol can be used in both ways.
|
||
|
|
|
||
|
|
|
||
|
|
@copydoc builtins
|
||
|
|
|
||
|
|
|
||
|
|
@{
|
||
|
|
@defgroup builtins YAP Core Builtins:
|
||
|
|
|
||
|
|
@}
|
||
|
|
|