[NTG-pdftex] \pdffontobjnum assertion failed

[Akira Kakuto]

Hi,

+static int font_has_subset(internalfontnumber f)
+{
+    int i, s;
+    /* search for |first_char| and |last_char| */
+    for (i = fontbc[f]; i <= fontec[f]; i++)
+        if (pdfcharmarked(f, i))
+            break;
+    s = i;
+    for (i = fontec[f]; i >= fontbc[f]; i--)
+        if (pdfcharmarked(f, i))
+            break;
+    if (s > i)
+        return 0;
+    else
+        return 1;
+}
+

If no character is used, as in the present example,
first_char = s = fontec[f] + 1 ( = 128 for \tenit )
last_char  = i = fontbc[f] - 1 ( = -1  for \tenit )
so s > i or return 0. I think it is nice to apply
the patch by Hironobu.

Best,
Akira