Fix undefined error of pointer dereference.
MODIFY
src/backtrace.c
src/backtrace.c
@@ -51,6 +51,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, mrb_code *pc0, each_backtrace_fu
pc = mrb->c->cibase[i].err;
}
else if (i+1 <= ciidx) {
+ if (!mrb->c->cibase[i + 1].pc) continue;
pc = &mrb->c->cibase[i+1].pc[-1];
}
else {

Fix undefined error of pointer dereference.