gigaseconds (C)

c/gigasecond/src/gigasecond.c

@@ -0,0 +1,26 @@
+#include "gigasecond.h"
+
+/* See GNUmakefile in following link for explanation
+ * https://exercism.io/my/solutions/103b2f7d92db42309c1988030f5202c7
+ */
+#if defined UNIT_TEST || defined DEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+
+time_t gigasecond_after(time_t t)
+{
+    return t+1e9;
+}
+
+#ifdef UNIT_TEST
+int main(int ac, char **av)
+{
+    int arg=1;
+    unsigned long i;
+    for (; arg<ac-1; ++arg) {
+        i=atol(av[arg]);
+        printf("giga(%lu)=%lu\n", i, gigasecond_after(i));
+    }
+}
+#endif

c/gigasecond/src/gigasecond.h

@@ -0,0 +1,16 @@
+#ifndef GIGASECOND_H
+#define GIGASECOND_H
+
+#include <time.h>
+
+time_t gigasecond_after(time_t);
+
+/* See GNUmakefile in following link for explanation
+ * https://exercism.io/my/solutions/103b2f7d92db42309c1988030f5202c7
+ */
+#ifdef  TESTALL
+#undef  TEST_IGNORE
+#define TEST_IGNORE() {}
+#endif
+
+#endif