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authorManolo Gouy <Manolo>2018-11-08 17:48:18 +0000
committerManolo Gouy <Manolo>2018-11-08 17:48:18 +0000
commitb325a6b4b20e250a6907e520a70a9ab2d772adf9 (patch)
treeadfcca5e20bf8ec29ea40ccb1a6d72059e1c308c /src/gl_draw.cxx
parentff20361f5ab219f5ab2b5204addf548b82c58105 (diff)
Add guard against gl_draw(const char*, int) called with null 2nd argument.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@13117 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/gl_draw.cxx')
-rw-r--r--src/gl_draw.cxx6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gl_draw.cxx b/src/gl_draw.cxx
index 6af0deb8e..695c4ee08 100644
--- a/src/gl_draw.cxx
+++ b/src/gl_draw.cxx
@@ -128,8 +128,10 @@ void gl_remove_displaylist_fonts()
\see gl_texture_pile_height(int)
*/
void gl_draw(const char* str, int n) {
- if (has_texture_rectangle) Fl_Gl_Window_Driver::draw_string_with_texture(str, n);
- else Fl_Gl_Window_Driver::global()->draw_string_legacy(str, n);
+ if (n > 0) {
+ if (has_texture_rectangle) Fl_Gl_Window_Driver::draw_string_with_texture(str, n);
+ else Fl_Gl_Window_Driver::global()->draw_string_legacy(str, n);
+ }
}