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repo: rxvt-unicode-sixel
action: commit
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revision_from: 6efc14de0e658352fa26a039905f0c6c73e87f25:
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commit 6efc14de0e658352fa26a039905f0c6c73e87f25
Author: Emanuele Giaquinta <emanuele.giaquinta@gmail.com>
Date:   Fri Jul 29 09:41:22 2011 +0000

    Avoid undefined behaviour.

diff --git a/src/main.C b/src/main.C

--- a/src/main.C
+++ b/src/main.C
@@ -107,7 +107,7 @@ text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2)
     }

   // check to see whether this combination already exists otherwise
-  for (cc = v.end (); cc-- > v.begin (); )
+  for (cc = v.begin (); cc < v.end (); cc++)
     if (cc->c1 == c1 && cc->c2 == c2)
       return COMPOSE_LO + (cc - v.begin ());

diff --git a/src/rxvtfont.C b/src/rxvtfont.C

--- a/src/rxvtfont.C
+++ b/src/rxvtfont.C
@@ -820,7 +820,7 @@ rxvt_font_x11::load (const rxvt_fontprop &prop, bool force_prop)
     {
       font_weight *best = fonts + count - 1;

-      for (font_weight *w = best; w-- > fonts; )
+      for (font_weight *w = fonts; w < best; w++)
         if (w->diff <= best->diff)
           best = w;

@@ -926,7 +926,7 @@ rxvt_font_x11::load (const rxvt_fontprop &prop, bool force_prop)

   width = 1;

-  for (uint16_t *t = extent_test_chars + ecb_array_length (extent_test_chars); t-- > extent_test_chars; )
+  for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
     {
       if (FROM_UNICODE (cs, *t) == NOCHAR)
         continue;
@@ -1248,7 +1248,7 @@ rxvt_font_xft::load (const rxvt_fontprop &prop, bool force_prop)

       int glheight = height;

-      for (uint16_t *t = extent_test_chars + ecb_array_length (extent_test_chars); t-- > extent_test_chars; )
+      for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
         {
           FcChar16 ch = *t;

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