1 files changed, 74 insertions, 0 deletions
diff --git a/bitwise-operator-tests.cpp b/bitwise-operator-tests.cpp
new file mode 100644
index 0000000..f3f8a8f
--- /dev/null
+++ b/bitwise-operator-tests.cpp
@@ -0,0 +1,74 @@
+#include <iostream>
+#include <limits>
+
+/*
+ *
+ * 
+ *
+ *
+ */
+
+void cin_clear() {
+
+	std::cin.clear();
+	std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+}
+
+int main () {
+
+	unsigned long Quiz1 = 0;
+	unsigned long Student = 0;
+	unsigned long Pass = 0;
+	const int maxval = 31;
+	std::string choice;
+	while(1) {
+
+		if(std::cin.eof()) {
+			std::cout << "Exiting..." << std::endl;			
+			return -1;
+		}
+		
+		std::cout << "Would you like to 'add' a new student's result or 'print' out the total results?" << std::endl;
+		if(std::cin >> choice) {} else {
+			cin_clear();
+			continue;
+		}
+		
+		if(choice == "add") {
+			std::cout << "Which student out of 30?" << std::endl;
+			if(std::cin >> Student) {} else {
+				cin_clear();
+				continue;
+			}
+
+			if(Student >= maxval || Student < 1) {
+				continue;
+			}
+			
+			std::cout << "Did this student pass? (0 == fail) (1 == pass)" << std::endl;
+			if(std::cin >> Pass) {} else {
+				cin_clear();
+				continue;
+			}
+			
+			if(Pass) {
+				Quiz1 |= 1UL << Student;
+			}
+			
+			if(!Pass) {
+				Quiz1 &= ~(1UL << Student);
+			}
+			
+			std::cout << "Added result for student #" << Student
+					  << ((Quiz1 & (1UL << Student)) ? ": passed" : ": failed") << std::endl;
+		}
+
+		if(choice == "print") {
+			for(int i = 1 ; i != maxval ; ++i) {
+				std::cout << "Student #" << i << " " << ((Quiz1 & (1UL << i)) ? "passed" : "failed") << std::endl;
+			}
+		}
+	}
+	
+	return 0;
+}