Trying fib tests on other OSs

tests/cicd_tests/fib_src/fib.c

+#include <stdio.h>
+
+extern int fib();
+extern int fib2();
+extern int fibp(int n, int (*)(int,int));
+
+int add(int n1, int n2)
+{
+	if (n1 == 0)
+		return n2;
+	else if (n2 == 0)
+		return n1;
+	else if (n1 == 2)
+		return add(1, add(1, n2));
+	else
+		return n1 + add(0, n2);
+}
+
+main(int argc, char **argv)
+{
+	int x = 3;
+	int f = 0;
+	if (argc >= 2)
+		x = atoi(argv[1]);
+
+	if (x <= 2)
+		f = fib_main(x);
+	if (x == 3)
+		f = fib2(x);
+	else if (x == 4)
+		f = fib_simple(x);
+	else if (x == 5)
+		f = fibp(x, &add);
+	else
+		f = fib(x);
+	printf("Fibonacci(%d) = %d\n", x, f);
+
+	return f;
+}
+
+fib_main(int f) {
+	if (f <= 2)
+		return 1;
+	else
+		return fib_simple(f-1) + fib_main(f-2);
+}
+
+fib_simple(int f) {
+	if (f <= 2)
+		return 1;
+	else
+		return fib_simple(f-1) + fib_simple(f-2);
+}

tests/cicd_tests/fib_src/libfib.c

+extern int fib_main();
+extern int fib2();
+extern int fib2p(int n, int (*)(int,int));
+
+int add2(int n1, int n2)
+{
+	if (n1 == 0)
+		return n2;
+	else if (n2 == 0)
+		return n1;
+	else if (n2 == 2)
+		return add2(add2(n1, 1),1);
+	else
+		return add2(0, n2) + add2(n1, 0);
+}
+
+int fib(int n)
+{
+	if (n <= 2)
+		return 1;
+	else
+		return fib_main(n-1) + fib2(n-2);
+
+}
+
+int fibp(int n, int (*addp)(int,int))
+{
+	if (n <= 2)
+		return 1;
+	else
+		return (*addp)(fib_main(n-1),fib2p(n-2,&add2));
+}

tests/cicd_tests/fib_src/libfib2.c

+extern int fib_main();
+extern int fib();
+
+int fib2(int n)
+{
+	if (n <= 2)
+		return 1;
+	else
+		return fib2(n-1) + fib_main(n-2);
+}
+
+int fib2p(int n, int (*addp)(int,int))
+{
+	if (n <= 2)
+		return (*addp)(1,0);
+	else
+		return (*addp)(fib2(n-1),fib2p(n-2, addp));
+}