ruby: get rid of Vector and use STL

add a couple of helper functions to base for deleteing all pointers in
a container and outputting containers to a stream

1 files changed, 97 insertions, 0 deletions

diff --git a/src/base/stl_helpers.hh b/src/base/stl_helpers.hh
new file mode 100644
index 000000000..740bd1b48
--- /dev/null
+++ b/src/base/stl_helpers.hh
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2010 The Hewlett-Packard Development Company
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#ifndef __BASE_STL_HELPERS_HH__
+#define __BASE_STL_HELPERS_HH__
+
+#include <algorithm>
+#include <iostream>
+
+namespace m5 {
+namespace stl_helpers {
+
+template <typename T>
+void
+deletePointer(T &ptr)
+{
+    delete ptr;
+    ptr = NULL;
+}
+
+template <class T>
+class ContainerPrint
+{
+  private:
+    std::ostream &out;
+    bool first;
+
+  public:
+    ContainerPrint(std::ostream &out)
+        : out(out), first(true)
+    {}
+
+    void
+    operator()(const T &elem)
+    {
+        out << elem;
+        // First one doesn't get a space before it.  The rest do.
+        if (first)
+            first = false;
+        else
+            out << " ";
+    }
+};
+
+// Treat all objects in an stl container as pointers to heap objects,
+// calling delete on each one and zeroing the pointers along the way
+template <typename T, template <typename T, typename A> class C, typename A>
+void
+deletePointers(C<T,A> &container)
+{
+    std::for_each(container.begin(), container.end(), deletePointer<T>);
+}
+
+// Write out all elements in an stl container as a space separated
+// list enclosed in square brackets
+template <typename T, template <typename T, typename A> class C, typename A>
+std::ostream &
+operator<<(std::ostream& out, const C<T,A> &vec)
+{
+    out << "[ ";
+    std::for_each(vec.begin(), vec.end(), ContainerPrint<T>(out));
+    out << " ]";
+    out << std::flush;
+    return out;
+}
+
+/* namespace stl_helpers */ }
+/* namespace m5 */ }
+
+#endif // __BASE_STL_HELPERS_HH__