From 0d054e292e5492981867be69c788edd04dc8adeb Mon Sep 17 00:00:00 2001
From: Slaren <2141330+slaren@users.noreply.github.com>
Date: Fri, 31 Mar 2023 20:03:48 +0200
Subject: Show error message when -f fails

---
 examples/common.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/common.cpp b/examples/common.cpp
index af3ad9e..50c5365 100644
--- a/examples/common.cpp
+++ b/examples/common.cpp
@@ -66,6 +66,11 @@ bool gpt_params_parse(int argc, char ** argv, gpt_params & params) {
                 break;
             }
             std::ifstream file(argv[i]);
+            if (!file) {
+                fprintf(stderr, "error: failed to open file '%s'\n", argv[i]);
+                invalid_param = true;
+                break;
+            }
             std::copy(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>(), back_inserter(params.prompt));
             if (params.prompt.back() == '\n') {
                 params.prompt.pop_back();
-- 
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