diff options
Diffstat (limited to 'libcpp/include')
| -rw-r--r-- | libcpp/include/line-map.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h index a6eb87c..6c77c28 100644 --- a/libcpp/include/line-map.h +++ b/libcpp/include/line-map.h @@ -49,13 +49,16 @@ along with this program; see the file COPYING3. If not see /* The type of line numbers. */ typedef unsigned int linenum_type; +/* A type for doing arithmetic on line numbers. */ +typedef long long linenum_arith_t; + /* A function for for use by qsort for comparing line numbers. */ inline int compare (linenum_type lhs, linenum_type rhs) { - /* Avoid truncation issues by using long long for the comparison, + /* Avoid truncation issues by using linenum_arith_t for the comparison, and only consider the sign of the result. */ - long long diff = (long long)lhs - (long long)rhs; + linenum_arith_t diff = (linenum_arith_t)lhs - (linenum_arith_t)rhs; if (diff) return diff > 0 ? 1 : -1; return 0; |