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include fixes from stable releasew

This commit is contained in:
Vítor Santos Costa 2009-02-16 09:55:31 +00:00
parent f7046286a0
commit d0de8a9f7d
1 changed files with 20 additions and 6 deletions
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26
pl/arith.yap
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@ -79,7 +79,6 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$clean_cuts'(NG0, NG),
'$do_c_built_in'(A,M,NA).
'$do_c_built_in'('C'(A,B,C), _, (A=[B|C])) :- !.
/*
'$do_c_built_in'(X is Y, _, P) :-
nonvar(Y), % Don't rewrite variables
!,
@ -98,7 +97,6 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$expand_expr'(F, Q, V),
'$do_and'(P, Q, R0),
'$do_and'(R0, Comp, R).
*/
'$do_c_built_in'(P, _, P).
'$do_c_built_metacall'(G1, Mod, '$execute_wo_mod'(G1,Mod)) :-
@ -191,9 +189,9 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$do_and'(E, '$plus'(X1,Y1,O), F),
'$do_and'(Q, F, P).
'$expand_expr'(-, X, Y, O, Q, P) :-
var(X), integer(Y), \+ '$bignum'(Y), !,
Z is -Y,
'$do_and'(Q, '$plus'(X,Z,O), P).
var(X), number(Y),
Z is -Y, !,
'$expand_expr'(+, Z, X, O, Q, P).
'$expand_expr'(-, X, Y, O, Q, P) :- !,
'$preprocess_args_for_non_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$minus'(X1,Y1,O), F),
@ -202,6 +200,10 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$preprocess_args_for_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$times'(X1,Y1,O), F),
'$do_and'(Q, F, P).
'$expand_expr'(//, X, Y, O, Q, P) :-
nonvar(Y), Y == 0, !,
'$binary_op_as_integer'(//,IOp),
'$do_and'(Q, is(O,IOp,X,Y), P).
'$expand_expr'(//, X, Y, O, Q, P) :- !,
'$preprocess_args_for_non_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$div'(X1,Y1,O), F),
@ -214,10 +216,18 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$preprocess_args_for_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$or'(X1,Y1,O), F),
'$do_and'(Q, F, P).
'$expand_expr'(<<, X, Y, O, Q, P) :-
var(X), number(Y), Y < 0,
Z is -Y, !,
'$expand_expr'(>>, X, Z, O, Q, P).
'$expand_expr'(<<, X, Y, O, Q, P) :- !,
'$preprocess_args_for_non_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$sll'(X1,Y1,O), F),
'$do_and'(Q, F, P).
'$expand_expr'(>>, X, Y, O, Q, P) :-
var(X), number(Y), Y < 0,
Z is -Y, !,
'$expand_expr'(<<, X, Z, O, Q, P).
'$expand_expr'(>>, X, Y, O, Q, P) :- !,
'$preprocess_args_for_non_commutative'(X, Y, X1, Y1, E),
'$do_and'(E, '$slr'(X1,Y1,O), F),
@ -248,7 +258,7 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$preprocess_args_for_non_commutative'(X, Y, X, Y, true) :-
integer(X), \+ '$bignum'(X), var(Y), !.
'$preprocess_args_for_non_commutative'(X, Y, X, Z, Z = Y) :-
integer(X), \+ '$bignum'(Y), !.
integer(X), \+ '$bignum'(X), !.
'$preprocess_args_for_non_commutative'(X, Y, Z, W, E) :-
'$do_and'(Z = X, Y = W, E).
@ -285,6 +295,9 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$unaryop'(ceiling(X) ,ceiling,X).
'$unaryop'(msb(X) ,msb ,X).
'$unaryop'(sign(X) ,sign ,X).
'$unaryop'(float_fractional_part(X) ,float_fractional_part ,X).
'$unaryop'(float_integer_part(X) ,float_integer_part ,X).
'$unaryop'(lgamma(X) ,lgamma ,X).
% These are the binary arithmetic operators
'$binaryop'(X+Y ,+ ,X,Y).
@ -305,6 +318,7 @@ do_not_compile_expressions :- set_value('$c_arith',[]).
'$binaryop'(max(X,Y) ,max ,X,Y).
'$binaryop'(min(X,Y) ,min ,X,Y).
'$binaryop'(gcd(X,Y) ,gcd ,X,Y).
'$binaryop'(atan2(X,Y) ,atan2 ,X,Y).
% The table number for each operation is given here