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-rw-r--r--src/Fl_Help_View.cxx4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/Fl_Help_View.cxx b/src/Fl_Help_View.cxx
index 0f1186c41..f83c8a126 100644
--- a/src/Fl_Help_View.cxx
+++ b/src/Fl_Help_View.cxx
@@ -1518,7 +1518,7 @@ void Fl_Help_View::format() {
if (buf.cmp("LI")) {
block->ol = 0;
- if (OL_num.back()>=0) {
+ if (OL_num.size() && OL_num.back()>=0) {
block->ol = 1;
block->ol_num = (int)OL_num.back();
int nnum = OL_num.pop_back() + 1;
@@ -1554,7 +1554,7 @@ void Fl_Help_View::format() {
if (buf.cmp("/OL") ||
buf.cmp("/UL")) {
- OL_num.pop_back();
+ if (OL_num.size()) OL_num.pop_back();
}
if (buf.cmp("/UL") ||