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| author | Denys Vlasenko | 2018-12-05 01:21:59 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-12-05 15:43:35 +0100 |
| commit | f359e004b0ce4a5ac361f553c13e876123fd4ebb (patch) | |
| tree | ee0c7332b6d66832970ec80481051b61b0dac017 | |
| parent | 68cc0a676eeceffae84a91b73895b5c4d72c2021 (diff) | |
| download | busybox-f359e004b0ce4a5ac361f553c13e876123fd4ebb.zip busybox-f359e004b0ce4a5ac361f553c13e876123fd4ebb.tar.gz | |
bc: make 2^1000000 interruptible faster
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | miscutils/bc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 866fa30..b392b05 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -2039,6 +2039,11 @@ static BcStatus bc_num_p(BcNum *a, BcNum *b, BcNum *restrict c, size_t scale) powrdx <<= 1; s = bc_num_mul(©, ©, ©, powrdx); if (s) goto err; + // It is too slow to handle ^C only after entire "2^1000000" completes + if (G_interrupt) { + s = BC_STATUS_FAILURE; + goto err; + } } bc_num_copy(c, ©); @@ -2054,6 +2059,11 @@ static BcStatus bc_num_p(BcNum *a, BcNum *b, BcNum *restrict c, size_t scale) s = bc_num_mul(c, ©, c, resrdx); if (s) goto err; } + // It is too slow to handle ^C only after entire "2^1000000" completes + if (G_interrupt) { + s = BC_STATUS_FAILURE; + goto err; + } } if (neg) { |