fix: read arguments only three

diff --git a/discspan.c b/discspan.c
index 369bc32b536794e35c70190bd754996aad3d31f2..6fe4299b0f40786657491dd0f492c2fc2bcf3bfb 100644 (file)
--- a/discspan.c
+++ b/discspan.c
@@ -66,14 +66,14 @@ void readArgument(int argc, char *argv[])
 
 int main(int argc, char *argv[])
 {
-       const char *input = argv[1];
-       const char *output = argv[2];
-
        if (argc <= 3) {
                usage();
                return 1;
        }
 
+       const char *input = argv[1];
+       const char *output = argv[2];
+
        readArgument(argc, argv);
        file_size_t *fs = read_input_file(input);