diff options
Diffstat (limited to 'gdb/c-exp.y')
| -rw-r--r-- | gdb/c-exp.y | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y index 192ed47..7d4b177 100644 --- a/gdb/c-exp.y +++ b/gdb/c-exp.y @@ -977,10 +977,11 @@ parse_number (p, len, parsed_float, putithere) } if (i >= base) return ERROR; /* Invalid digit in this base */ - if(!unsigned_p && (prevn >= n)) + /* Portably test for overflow (only works for nonzero values, so make + a second check for zero). */ + if((prevn >= n) && n != 0) unsigned_p=1; /* Try something unsigned */ - /* Don't do the range check if n==i and i==0, since that special - case will give an overflow error. */ + /* If range checking enabled, portably test for unsigned overflow. */ if(RANGE_CHECK && n!=0) { if((unsigned_p && (unsigned)prevn >= (unsigned)n)) |