c++ macro test

albertz · Dec 22, 2015 · ddef30f · ddef30f
1 parent 6a0004c
commit ddef30f
Showing 1 changed file with 28 additions and 0 deletions.
diff --git a/cpp-macro.cpp b/cpp-macro.cpp
@@ -0,0 +1,28 @@
+#include <iostream>
+using namespace std;
+
+int a() { return 2; }
+int b() { return 3; }
+
+
+int main() {
+	cout << a() << " " << b() << endl;
+
+#define a b
+#define b a
+	cout << a() << " " << b() << endl;
+
+#undef a
+#undef b
+#define b a
+#define a b
+	cout << a() << " " << b() << endl;
+
+#undef a
+#undef b
+#define b a
+	cout << a() << " " << b() << endl;
+
+	return 0;
+}
+