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bc: do not yet allow 2^2.1

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2018-12-22 23:14:48 +01:00
parent a9f59db809
commit 1acac7f9c5
1 changed files with 5 additions and 3 deletions
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8
miscutils/bc.c
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@@ -2095,8 +2095,10 @@ static FAST_FUNC BC_STATUS zbc_num_p(BcNum *a, BcNum *b, BcNum *restrict c, size
size_t i, powrdx, resrdx;
bool neg;
// GNU bc does not allow 2^2.0. We do.
// if (b->rdx) RETURN_STATUS(bc_error("non integer number"));
// GNU bc does not allow 2^2.0 - we do
for (i = 0; i < b->rdx; i++)
if (b->num[i] != 0)
RETURN_STATUS(bc_error("not an integer"));
if (b->len == 0) {
bc_num_one(c);
@@ -2505,7 +2507,7 @@ static BC_STATUS zdc_num_modexp(BcNum *a, BcNum *b, BcNum *c, BcNum *restrict d)
if (c->len == 0)
RETURN_STATUS(bc_error("divide by zero"));
if (a->rdx || b->rdx || c->rdx)
RETURN_STATUS(bc_error("non integer number"));
RETURN_STATUS(bc_error("not an integer"));
if (b->neg)
RETURN_STATUS(bc_error("negative number"));