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add address_bits flag (request from Paulo Moura).

This commit is contained in:
Vitor Santos Costa 2010-02-23 00:29:17 +00:00
parent f3c2dea752
commit 83f25afc41
2 changed files with 21 additions and 0 deletions
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11
C/sysbits.c
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@ -2972,6 +2972,16 @@ p_ld_path(void)
return Yap_unify(ARG1,MkAtomTerm(Yap_LookupAtom(YAP_LIBDIR)));
}
static Int
p_address_bits(void)
{
#if SIZEOF_INT_P==4
return Yap_unify(ARG1,MkIntTerm(32));
#else
return Yap_unify(ARG1,MkIntTerm(64));
#endif
}
#ifdef _WIN32
@ -3193,6 +3203,7 @@ Yap_InitSysPreds(void)
Yap_InitCPred ("$unix", 0, p_unix, SafePredFlag);
Yap_InitCPred ("$win32", 0, p_win32, SafePredFlag);
Yap_InitCPred ("$ld_path", 1, p_ld_path, SafePredFlag);
Yap_InitCPred ("$address_bits", 1, p_address_bits, SafePredFlag);
#ifdef _WIN32
Yap_InitCPred ("win_registry_get_value", 3, p_win_registry_get_value,0);
#endif

10
pl/directives.yap
View File

@ -876,10 +876,20 @@ yap_flag(max_threads,X) :-
yap_flag(max_threads,X) :-
'$do_error'(domain_error(flag_value,max_threads+X),yap_flag(max_threads,X)).
yap_flag(address_bits,X) :-
var(X), !,
'$address_bits'(X).
yap_flag(address_bits,X) :-
integer(X), X > 0, !,
'$do_error'(permission_error(modify,flag,address_bits),yap_flag(address_bits,X)).
yap_flag(address_bits,X) :-
'$do_error'(domain_error(flag_value,address_bits+X),yap_flag(address_bits,X)).
yap_flag(dialect,yap).
'$show_yap_flag_opts'(V,Out) :-
(
V = address_bits ;
V = answer_format ;
V = argv ;
V = bounded ;