diff options
| author | Eric Christopher <echristo@gcc.gnu.org> | 2007-05-02 21:57:50 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gcc.gnu.org> | 2007-05-02 21:57:50 +0000 |
| commit | 22a8a52d650ef0c4718d04289862f6319f8a8d9d (patch) | |
| tree | 96d3589306464ba40e11a61ae06c3e1fdccbd38f /libcpp | |
| parent | fca35e1b54d46d1f731ec8d7681f2e680c85a879 (diff) | |
if-div.c: New file.
2007-05-02 Eric Christopher <echristo@apple.com>
* gcc.dg/cpp/if-div.c: New file.
2007-05-02 Eric Christopher <echristo@apple.com>
* expr.c (num_div_op): Don't overflow if the result is
zero.
From-SVN: r124358
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/ChangeLog | 5 | ||||
| -rw-r--r-- | libcpp/expr.c | 7 |
2 files changed, 9 insertions, 3 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index 0193de47cf3..cc5a71692c7 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,8 @@ +2007-05-02 Eric Christopher <echristo@apple.com> + + * expr.c (num_div_op): Don't overflow if the result is + zero. + 2007-05-02 Tom Tromey <tromey@redhat.com> PR preprocessor/28709: diff --git a/libcpp/expr.c b/libcpp/expr.c index 574b85ff656..a00614026c2 100644 --- a/libcpp/expr.c +++ b/libcpp/expr.c @@ -91,7 +91,7 @@ interpret_float_suffix (const uchar *s, size_t len) case 'l': case 'L': l++; break; case 'i': case 'I': case 'j': case 'J': i++; break; - case 'd': case 'D': + case 'd': case 'D': /* Disallow fd, ld suffixes. */ if (d && (f || l)) return 0; @@ -441,7 +441,7 @@ append_digit (cpp_num num, int digit, int base, size_t precision) if (add_low + digit < add_low) add_high++; add_low += digit; - + if (result.low + add_low < result.low) add_high++; if (result.high + add_high < result.high) @@ -1527,7 +1527,8 @@ num_div_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op) { if (negate) result = num_negate (result, precision); - result.overflow = num_positive (result, precision) ^ !negate; + result.overflow = (num_positive (result, precision) ^ !negate + && !num_zerop (result)); } return result; |