Handle correctly cases where codepoint_width returns -1

Fixes #972
2016-12-14 13:53:30 +00:00 · 2016-12-14 13:53:30 +00:00 · 377046e315
commit 377046e315
parent 85cd27138d
1 changed files with 1 additions and 1 deletions
--- a/src/string.hh
+++ b/src/string.hh
@ -114,7 +114,7 @@ public:
    explicit String(Codepoint cp, ColumnCount count)
    {
        kak_assert(count % codepoint_width(cp) == 0);
-        int cp_count = (int)(count / codepoint_width(cp));
+        int cp_count = (int)(count / std::max(codepoint_width(cp), 1_col));
        reserve(utf8::codepoint_size(cp) * cp_count);
        while (cp_count-- > 0)
            utf8::dump(std::back_inserter(*this), cp);