From aa7e1d0ffd243c123a67721304a6653d3cb5fa39 Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Mon, 16 Jul 2018 09:59:10 -0700
Subject: 4354

---
 subx/021translate.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/subx/021translate.cc b/subx/021translate.cc
index f9da5f19..4cecb030 100644
--- a/subx/021translate.cc
+++ b/subx/021translate.cc
@@ -12,6 +12,10 @@ if (is_equal(argv[1], "translate")) {
   assert(argc > 3);
   program p;
   ifstream fin(argv[2]);
+  if (!fin) {
+    cerr << "could not open " << argv[2] << '\n';
+    return 1;
+  }
   parse(fin, p);
   if (trace_contains_errors()) return 1;
   transform(p);
-- 
cgit 1.4.1-2-gfad0