small test

1 files changed, 52 insertions, 0 deletions

diff --git a/functionpointertest.cpp b/functionpointertest.cpp
new file mode 100644
index 0000000..7bca9ec
--- /dev/null
+++ b/functionpointertest.cpp
@@ -0,0 +1,52 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ *
+ *
+ *
+ */
+
+int summing(int a, int b) {
+
+	return a + b;
+}
+
+int subtracting(int a, int b) {
+
+	return a - b;
+}
+
+int multiplying(int a, int b) {
+
+	return a * b;
+}
+
+int dividing(int a, int b) {
+
+	return a / b;
+}
+
+int fpfunction_as_argument(int(*calculate)(int, int), int a, int b) {
+
+	return calculate(a, b);
+}
+
+
+
+int main () {
+
+	int (*fpfp)(int, int) = summing;
+	int (*fpfp1)(int, int) = subtracting;
+	int (*fpfp2)(int, int) = multiplying;
+	int (*fpfp3)(int, int) = dividing;
+	std::vector<int(*)(int, int)> funcvec = {fpfp, fpfp1, fpfp2, fpfp3};
+	for(auto a : funcvec) {
+		std::cout << a(10, 10) << std::endl;
+	}
+	
+	std::cout << std::endl;
+	std::cout << fpfunction_as_argument(multiplying, 10, 929) << std::endl;
+	return 0;
+}