shithub: MicroHs

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Avoid empty strings in append

--- a/src/runtime/eval.c

+++ b/src/runtime/eval.c

@@ -2582,6 +2582,10 @@

 struct bytestring

 bsappend(struct bytestring p, struct bytestring q)

 {

+  if (p.size == 0)

+    return q;

+  if (q.size == 0)

+    return p;

   struct bytestring r;

   r.size = p.size + q.size;

   r.string = MALLOC(r.size);

-- 

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