1acac7f9c
Denys Vlasenko
2018-12-22
Subject
bc: do not yet allow 2^2.1
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miscutils/bc.c+5 -3
| @@ -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")); | |