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| -rw-r--r-- | src/Document.cxx | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Document.cxx b/src/Document.cxx index 4c1901679..e9824d9dd 100644 --- a/src/Document.cxx +++ b/src/Document.cxx @@ -937,6 +937,8 @@ void Document::CheckReadOnly() { // SetStyleAt does not change the persistent state of a document bool Document::DeleteChars(int pos, int len) { + if (pos < 0) + return false; if (len <= 0) return false; if ((pos + len) > Length()) |