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improved support for export/import of 64 bits

This commit is contained in:
Vitor Santos Costa 2015-01-14 04:51:00 -08:00
parent 832b2258c8
commit 0d5fff0f16
1 changed files with 17 additions and 4 deletions
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21
C/gmp_support.c
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@ -1027,22 +1027,34 @@ Yap_gmp_exp_big_big(Term t1, Term t2)
Term
Yap_gmp_big_from_64bits(YAP_LONG_LONG i)
Yap_gmp_big_from_64bits(int64_t i)
{
char s[64];
char s[65];
MP_INT new;
#ifdef _WIN32
snprintf(s,64,"%I64d", (long long int)i);
#elif HAVE_SNPRINTF
snprintf(s, 64, "%lld", (long long int)i);
snprintf(s, 64, "%lld", (int64_t)i);
#else
sprintf(s, "%lld", (long long int)i);
sprintf(s, "%lld", (int64_t)i);
#endif
mpz_init_set_str (&new, s, 10);
return MkBigAndClose(&new);
}
int64_t
Yap_gmp_big_to_64bits(Term t)
{
MP_INT *b = Yap_BigIntOfTerm(t);
int64_t rc;
mpz_export( &rc, NULL, 0, sizeof(int64_t), 0, 0, b);
if ( mpz_sgn(b) < 0 ) {
rc = -rc;
}
return rc;
}
Term
Yap_gmq_rdiv_int_int(Int i1, Int i2)
{
@ -1752,6 +1764,7 @@ Yap_term_to_existing_rat(Term t, MP_RAT *b)
return FALSE;
}
#endif