Create hash_map.cpp

Author: steveLauwh

SGI-STL Test/container_test/hash_map/hash_map.cpp

@@ -0,0 +1,42 @@
+#include <iostream>
+#include <ext/hash_map>  
+#include <cstring> 
+
+using namespace __gnu_cxx;
+
+using namespace std;
+
+struct eqstr
+{
+	bool operator() (const char* s1, const char* s2) const
+	{
+		return strcmp(s1, s2) == 0;
+	}
+};
+
+
+int main()
+{
+	hash_map<const char*, int, hash<const char*>, eqstr> s;
+
+	cout << s.size() << endl;
+
+	s["why"] = 3;
+	s["always"] = 4;
+	s["me"] = 8;
+	s["star"] = 9;
+	s["steve"] = 18;
+
+	cout << s.size() << endl;
+	
+	cout << "why -> " << s["why"] << endl;
+	cout << "me -> " << s["me"] << endl;
+	cout << "star -> " << s["star"] << endl;
+
+	hash_map<const char*, int, hash<const char*>, eqstr>::iterator it = s.begin();
+	for (; it != s.end(); it++) {
+		cout << it->first << " " << it->second << endl;
+	}
+
+	return 0;
+}