Mercurial > hg > octave-nkf > gnulib-hg
changeset 1792:d68e41b0a355
(my_strtoumax): Fix typo in computing
whether overflow occurred. Improve overflow-detection to use
only one conditional branch total, rather than 2N+1
conditional branches for an N-digit number.
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Tue, 20 Apr 1999 13:24:14 +0000 |
| parents | 1fd4a36cb722 |
| children | 0f2f1e451293 |
| files | lib/xstrtoumax.c |
| diffstat | 1 files changed, 2 insertions(+), 2 deletions(-) [+] |
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--- a/lib/xstrtoumax.c +++ b/lib/xstrtoumax.c @@ -78,12 +78,12 @@ /* An implementation with uintmax_t longer than long, but with no known way to convert it. Do it by hand. Assume base 10. */ uintmax_t n = 0; - int overflow = 0; + uintmax_t overflow = 0; for (; '0' <= *ptr && *ptr <= '9'; ptr++) { uintmax_t n10 = n * 10; int digit = *ptr - '0'; - overflow |= ! (n10 / 10 == n && n10 < n10 + digit); + overflow |= n ^ (n10 + digit) / 10; n = n10 + digit; } if (endptr)