make sure parameter is not negative

- fixes coverity issue 1198843 Argument cannot be negative
2014-05-08 08:56:51 +02:00 · 2014-05-08 08:56:51 +02:00 · 2850a074ea
commit 2850a074ea
parent bed5c8002f
1 changed files with 5 additions and 1 deletions
--- a/Tools/io-benchmark.cpp
+++ b/Tools/io-benchmark.cpp
@ -116,9 +116,13 @@ int main(int argc, char *argv[])
 #ifdef __linux__
            int f =
                open(test_path.string().c_str(), O_CREAT | O_TRUNC | O_WRONLY | O_SYNC, S_IRWXU);
+            if (-1 == f)
+            {
+                throw OSRMException("Could not open random data file");
+            }
            time1 = std::chrono::steady_clock::now();
            int ret = write(f, random_array, number_of_elements * sizeof(unsigned));
-            if (-1 == ret)
+            if (0 > ret)
            {
                throw OSRMException("could not write random data file");
            }