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num_limits initialization fix

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svn: r17515
This commit is contained in:
Kevin Tew 2010-01-06 22:13:48 +00:00
parent 0f9eda49c1
commit 8c9019aeee
1 changed files with 21 additions and 18 deletions
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39
src/mzscheme/src/numstr.c
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@ -61,7 +61,9 @@ READ_ONLY static char *minus_infinity_str = "-inf.0";
READ_ONLY static char *not_a_number_str = "+nan.0";
READ_ONLY static char *other_not_a_number_str = "-nan.0";
static Scheme_Object *num_limits[3];
#if !defined(SIXTY_FOUR_BIT_INTEGERS) && defined(NO_LONG_LONG_TYPE)
SHARED_OK static Scheme_Object *num_limits[3];
#endif
#ifdef SCHEME_BIG_ENDIAN
# define MZ_IS_BIG_ENDIAN 1
@ -158,7 +160,25 @@ void scheme_init_numstr(Scheme_Env *env)
MZCONFIG_SCHEDULER_RANDOM_STATE),
env);
#if !defined(SIXTY_FOUR_BIT_INTEGERS) && defined(NO_LONG_LONG_TYPE)
REGISTER_SO(num_limits);
{
Scheme_Object *a[2], *v;
a[0] = scheme_make_integer(1);
a[1] = scheme_make_integer(64);
a[0] = scheme_bitwise_shift(2, a);
v = scheme_sub1(1, a);
num_limits[MZ_U8HI] = v;
a[0] = v;
a[1] = scheme_make_integer(-1);
v = scheme_bitwise_shift(2, a);
num_limits[MZ_S8HI] = v;
a[0] = v;
v = scheme_bin_minus(scheme_make_integer(0), scheme_add1(1, a));
num_limits[MZ_S8LO] = v;
}
#endif
}
# ifdef SIN_COS_NEED_DEOPTIMIZE
@ -1852,23 +1872,6 @@ static Scheme_Object *integer_to_bytes(int argc, Scheme_Object *argv[])
else
bad = !scheme_get_unsigned_long_long_val(n, (umzlonglong *)&llval);
# else
if (!num_limits[MZ_U8HI]) {
Scheme_Object *a[2], *v;
a[0] = scheme_make_integer(1);
a[1] = scheme_make_integer(64);
a[0] = scheme_bitwise_shift(2, a);
v = scheme_sub1(1, a);
num_limits[MZ_U8HI] = v;
a[0] = v;
a[1] = scheme_make_integer(-1);
v = scheme_bitwise_shift(2, a);
num_limits[MZ_S8HI] = v;
a[0] = v;
v = scheme_bin_minus(scheme_make_integer(0), scheme_add1(1, a));
num_limits[MZ_S8LO] = v;
}
if (sgned)
bad = (scheme_bin_lt(n, num_limits[MZ_S8LO])
|| scheme_bin_lt(num_limits[MZ_S8HI], n));