Coverity uninitialized variable in mscgen_api.cpp

- Initialize the variable ymax
- add an extended example with "parallel events" triggered by a `,` instead of `;` between events

1 files changed, 1 insertions, 0 deletions

diff --git a/libmscgen/mscgen_api.c b/libmscgen/mscgen_api.c
index 376b9d8..e2cdcb9 100644
--- a/libmscgen/mscgen_api.c
+++ b/libmscgen/mscgen_api.c
@@ -457,6 +457,7 @@ static RowInfo *computeCanvasSize(Context      *ctx,
     nextYmin = ymin = ctx->opts.entityHeadGap;
     yskipmax = 0;
 
+    ymax  = 0;
     MscResetArcIterator(m);
     do
     {