From b82dab8827ba9eecf02a1e805b3b9f2e8aed2fb8 Mon Sep 17 00:00:00 2001
From: Robin Krahl <guskraro@student.gu.se>
Date: Thu, 19 Oct 2017 11:57:22 +0000
Subject: pasad: Check whether U.txt exists before accessing it

---
 broccoli/src/pasad.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'broccoli/src/pasad.c')

diff --git a/broccoli/src/pasad.c b/broccoli/src/pasad.c
index 91b422c..1bb0e26 100644
--- a/broccoli/src/pasad.c
+++ b/broccoli/src/pasad.c
@@ -49,6 +49,10 @@ int main()
 	char ch='a';
 	int flag=0;
 	file=fopen("U.txt", "r");
+	if (!file) {
+		fprintf(stderr, "Could not open U.txt. Aborting.\n");
+		return 1;
+	}
 	printf("  >Reading U[%dx%d] matrix from .txt file...",L,r);
 	/* Read all values to an array */
 	for(i=0;i<L;i++)
-- 
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