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path: root/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx
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Diffstat (limited to 'src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx')
-rw-r--r--src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx
index ea04ca561..9fc98f0dd 100644
--- a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx
+++ b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx
@@ -1273,6 +1273,7 @@ double Fl_Xlib_Graphics_Driver::width_unscaled(unsigned int utf32) {
}
double Fl_Xlib_Graphics_Driver::width_unscaled(const char* str, int n) {
+ if ((str == NULL) || (n == 0)) return 0.;
if (n == fl_utf8len(*str)) { // str contains a single unicode character
int l;
unsigned c = fl_utf8decode(str, str+n, &l);