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Merge pull request #1849 from cremno/add-mrb_int_bit-macro

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add MRB_INT_BIT
This commit is contained in:
Yukihiro "Matz" Matsumoto
2014-03-13 03:09:58 +09:00
parent ad04b45e5b 1b6a4fb5a2
commit 5b3c76ee48
3 changed files with 9 additions and 6 deletions
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src/numeric.c
+4 -4
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@@ -680,7 +680,7 @@ int_to_i(mrb_state *mrb, mrb_value num)
return num;
}
#define SQRT_INT_MAX ((mrb_int)1<<((sizeof(mrb_int)*CHAR_BIT-1)/2))
#define SQRT_INT_MAX ((mrb_int)1<<((MRB_INT_BIT-1)/2))
/*tests if N*N would overflow*/
#define FIT_SQRT_INT(n) (((n)<SQRT_INT_MAX)&&((n)>=-SQRT_INT_MAX))
@@ -959,13 +959,13 @@ fix_xor(mrb_state *mrb, mrb_value x)
return mrb_fixnum_value(val);
}
#define NUMERIC_SHIFT_WIDTH_MAX (sizeof(mrb_int)*CHAR_BIT-1)
#define NUMERIC_SHIFT_WIDTH_MAX (MRB_INT_BIT-1)
static mrb_value
lshift(mrb_state *mrb, mrb_int val, size_t width)
{
if (width > NUMERIC_SHIFT_WIDTH_MAX) {
mrb_raisef(mrb, E_RANGE_ERROR, "width(%S) > (%S:sizeof(mrb_int)*CHAR_BIT-1)",
mrb_raisef(mrb, E_RANGE_ERROR, "width(%S) > (%S:MRB_INT_BIT-1)",
mrb_fixnum_value(width),
mrb_fixnum_value(NUMERIC_SHIFT_WIDTH_MAX));
}
@@ -1207,7 +1207,7 @@ fix_minus(mrb_state *mrb, mrb_value self)
mrb_value
mrb_fixnum_to_str(mrb_state *mrb, mrb_value x, int base)
{
char buf[sizeof(mrb_int)*CHAR_BIT+1];
char buf[MRB_INT_BIT+1];
char *b = buf + sizeof buf;
mrb_int val = mrb_fixnum(x);