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* view.c: Fixed an integer wraparound bug.

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This commit is contained in:
Roland Illig 2005-06-14 13:34:41 +00:00
parent 0979ed9626
commit c534a510c7
2 changed files with 8 additions and 3 deletions
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1
src/ChangeLog
View File

@ -15,6 +15,7 @@
* help.c: Likewise. * help.c: Likewise.
* layout.c: Likewise. * layout.c: Likewise.
* view.c: Likewise. * view.c: Likewise.
* view.c: Fixed an integer wraparound bug.
2005-06-08 Roland Illig <roland.illig@gmx.de> 2005-06-08 Roland Illig <roland.illig@gmx.de>

10
src/view.c
View File

@ -1103,9 +1103,13 @@ static void
view_move_up (WView *view, offset_type lines) view_move_up (WView *view, offset_type lines)
{ {
if (view->hex_mode) { if (view->hex_mode) {
if (view->hex_cursor >= lines * view->bytes_per_line) { offset_type bytes = lines * view->bytes_per_line;
view->hex_cursor -= lines * view->bytes_per_line; if (view->hex_cursor >= bytes) {
view->dpy_topleft -= lines * view->bytes_per_line; view->hex_cursor -= bytes;
if (view->dpy_topleft >= bytes)
view->dpy_topleft -= bytes;
else
view->dpy_topleft = 0;
} else { } else {
view->hex_cursor %= view->bytes_per_line; view->hex_cursor %= view->bytes_per_line;
} }