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| author | Akim Demaille <akim.demaille@gmail.com> | 2018-12-13 18:22:43 +0100 |
|---|---|---|
| committer | Akim Demaille <akim.demaille@gmail.com> | 2018-12-14 05:10:31 +0100 |
| commit | 953a95695a882ccc203e34cd6bf42585419b27e2 (patch) | |
| tree | 6f934fab80eaa7b91d1e44270f0dc67df3668271 /src/scan-gram.l | |
| parent | aadf6c0bf355359c7cee6e69d80a4b9c8ab91340 (diff) | |
| download | bison-953a95695a882ccc203e34cd6bf42585419b27e2.tar.gz | |
parser: warn about hexadecimal token numbers in Yacc mode
* src/scan-gram.l (scan_integer): Warn.
* tests/input.at (Yacc warnings on symbols): Check.
Diffstat (limited to 'src/scan-gram.l')
| -rw-r--r-- | src/scan-gram.l | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/scan-gram.l b/src/scan-gram.l index d3662690..07192f2b 100644 --- a/src/scan-gram.l +++ b/src/scan-gram.l @@ -846,6 +846,10 @@ static unsigned long scan_integer (char const *number, int base, location loc) { verify (INT_MAX < ULONG_MAX); + if (base == 16) + complain (&loc, Wyacc, + _("POSIX Yacc does not support hexadecimal literals")); + unsigned long num = strtoul (number, NULL, base); if (INT_MAX < num) |