From 2b5db0d9d451dafa70039dc0a668cde68e59d4f3 Mon Sep 17 00:00:00 2001 From: Ori Bernstein Date: Wed, 4 Dec 2019 12:37:07 -0800 Subject: acme: avoid division by zero when resizing col (#189) To reproduce, create a column with at least two windows and resize acme to have almost zero height. (imported from plan9port commit 76b9347a5fa3a0970527c6ee1b97ef1c714f636b) --- sys/src/cmd/acme/cols.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/sys/src/cmd/acme/cols.c b/sys/src/cmd/acme/cols.c index a5e0fbd28..f66634d57 100644 --- a/sys/src/cmd/acme/cols.c +++ b/sys/src/cmd/acme/cols.c @@ -197,8 +197,11 @@ colresize(Column *c, Rectangle r) w->maxlines = 0; if(i == c->nw-1) r1.max.y = r.max.y; - else - r1.max.y = r1.min.y+(Dy(w->r)+Border)*Dy(r)/Dy(c->r); + else { + r1.max.y = r1.min.y; + if(Dy(c->r) != 0) + r1.max.y += (Dy(w->r)+Border)*Dy(r)/Dy(c->r); + } r2 = r1; r2.max.y = r2.min.y+Border; draw(screen, r2, display->black, nil, ZP); -- cgit v1.2.3