diff --git a/C++/opp sign.cpp b/C++/opp sign.cpp
new file mode 100644
index 0000000..6019db1
--- /dev/null
+++ b/C++/opp sign.cpp	
@@ -0,0 +1,18 @@
+// C++ Program to Detect if two integers have opposite signs.
+#include<iostream>
+using namespace std;
+
+bool oppositeSigns(int x, int y)
+{
+	return ((x ^ y) < 0);
+}
+
+int main()
+{
+	int x = 100, y = -100;
+	if (oppositeSigns(x, y) == true)
+	cout << "Signs are opposite";
+	else
+	cout << "Signs are not opposite";
+	return 0;
+}