Preventing a floating-point exception when the available length

for an answer becomes zero.  The answer will instead wrap to the
next line, which does not look nice but is better than crashing.
Patch by Mahyar Abbaspour.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5235 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

diff --git a/ChangeLog b/ChangeLog
index 9b68f4cbd5b28c50148e37d719d0e5e874c42d7e..f64e2941f2469afea3305b3aca9239780f62f3d9 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2015-05-31  Mahyar Abbaspour  <mahyar.abaspour@gmail.com>
+       * src/prompt.c (get_statusbar_page_start): Prevent a floating-point
+       exception when the available length for an answer becomes zero.
+
 2015-05-28  Benno Schulenberg  <bensberg@justemail.net>
        * src/help.c (do_help), src/prompt.c (do_yesno_prompt): Normalize
        the whitespace after the recent changes in logic.

diff --git a/src/prompt.c b/src/prompt.c
index 671d53acf75ca192770567202c0dc3e7c5725757..61c4347f491730bd6af9435837d5248e7305cbf7 100644 (file)
--- a/src/prompt.c
+++ b/src/prompt.c
@@ -650,7 +650,7 @@ size_t statusbar_xplustabs(void)
  * get_statusbar_page_start(column) < COLS). */
 size_t get_statusbar_page_start(size_t start_col, size_t column)
 {
-    if (column == start_col || column < COLS - 1)
+    if (column == start_col || column < COLS - 1 || COLS == start_col + 1)
        return 0;
     else
        return column - start_col - (column - start_col) % (COLS -