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| author | Denys Vlasenko | 2018-12-22 23:14:48 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-12-22 23:14:48 +0100 |
| commit | 1acac7f9c596cd447d197039216f7b55c9ee3ab3 (patch) | |
| tree | b3ae155549c55401c798f575143967b6cdd0814c | |
| parent | a9f59db809d45847779b9c631d663a25b6115d7d (diff) | |
| download | busybox-1acac7f9c596cd447d197039216f7b55c9ee3ab3.zip busybox-1acac7f9c596cd447d197039216f7b55c9ee3ab3.tar.gz | |
bc: do not yet allow 2^2.1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | miscutils/bc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index ae5105b..8cd67b0 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -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")); |