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| author | Neil Hodgson <nyamatongwe@gmail.com> | 2018-09-18 13:00:08 +1000 |
|---|---|---|
| committer | Neil Hodgson <nyamatongwe@gmail.com> | 2018-09-18 13:00:08 +1000 |
| commit | 9808da6fa62255d1ad77d988ef3617a2381e3299 (patch) | |
| tree | cedb96c73248e455d27642cfd8ac7b15ab5731fb /lexers/LexCPP.cxx | |
| parent | d06d0ee3e6cc590b179320f88d33335a5cab1446 (diff) | |
| download | scintilla-mirror-9808da6fa62255d1ad77d988ef3617a2381e3299.tar.gz | |
Backport: Guard against shifting by negative amount as that is undefined behaviour.
Backport of changeset 7090:041e498f21d3.
Diffstat (limited to 'lexers/LexCPP.cxx')
| -rw-r--r-- | lexers/LexCPP.cxx | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lexers/LexCPP.cxx b/lexers/LexCPP.cxx index d6f6f63dd..a3942b5e3 100644 --- a/lexers/LexCPP.cxx +++ b/lexers/LexCPP.cxx @@ -242,7 +242,11 @@ class LinePPState { return level >= 0 && level < 32; } int maskLevel() const noexcept { - return 1 << level; + if (level >= 0) { + return 1 << level; + } else { + return 1; + } } public: LinePPState() : state(0), ifTaken(0), level(-1) { |