Z3 sources

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

lib/uint_map.h

@@ -0,0 +1,60 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    uint_map.h
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Leonardo de Moura (leonardo) 2010-07-01.
+
+Revision History:
+
+--*/
+#ifndef _UINT_MAP_H_
+#define _UINT_MAP_H_
+
+#include"vector.h"
+
+/**
+   \brief Implement a map from unsigned to T * using vectors
+*/
+template<typename T>
+class uint_map {
+    ptr_vector<T> m_map;
+public:
+    bool contains(unsigned k) const { return m_map.get(k, 0) != 0; }
+
+    bool find(unsigned k, T * & v) const { 
+        if (k >= m_map.size())
+            return false;
+        else {
+            v = m_map[k];
+            return v != 0;
+        }
+    }
+
+    void insert(unsigned k, T * v) {
+        m_map.reserve(k+1);
+        m_map[k] = v;
+        SASSERT(contains(k));
+    }
+
+    void erase(unsigned k) {
+        if (k < m_map.size()) 
+            m_map[k] = 0;
+    }
+
+    void reset() {
+        m_map.reset();
+    }
+};
+
+
+#endif /* _UINT_MAP_H_ */
+