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| author | Lars Knoll <lars.knoll@digia.com> | 2012-12-12 20:34:31 +0100 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@digia.com> | 2012-12-12 11:49:14 +0100 |
| commit | 5cf108e7a530229f4c9fa2751ec0aac42924fea6 (patch) | |
| tree | 3f017801f431315831dd21d9d0ee3ce87bb13a5b /qmljs_runtime.h | |
| parent | 47b01bb7e5ac8812470d5840534aeaa2eb342164 (diff) | |
Correctly handle negative 0
-0 and +0 are two distinct numbers. Since integers only
have one 0 value, we need to convert the number to double
when negating a 0
Change-Id: I915c4bd7168eece947fa91c6b65137a873d4f75a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Diffstat (limited to 'qmljs_runtime.h')
| -rw-r--r-- | qmljs_runtime.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/qmljs_runtime.h b/qmljs_runtime.h index 1021d4e89d..2de6f19f55 100644 --- a/qmljs_runtime.h +++ b/qmljs_runtime.h @@ -457,7 +457,8 @@ inline Value __qmljs_uminus(Value value, ExecutionContext *ctx) { TRACE1(value); - if (value.isInteger()) + // +0 != -0, so we need to convert to double when negating 0 + if (value.isInteger() && value.integerValue()) return Value::fromInt32(-value.integerValue()); double n = __qmljs_to_number(value, ctx); return Value::fromDouble(-n); |