diff options
| -rw-r--r-- | subx/021translate.cc | 4 |
1 files changed, 4 insertions, 0 deletions
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); |