From d04c0ca2d9df0e147239b18e90650ca8bd51d594 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cs.cmu.edu>
Date: Tue, 18 Jan 2011 15:55:40 -0500
Subject: new version of klm

---
 klm/util/scoped.hh | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'klm/util/scoped.hh')

diff --git a/klm/util/scoped.hh b/klm/util/scoped.hh
index 52864481..d36a7df3 100644
--- a/klm/util/scoped.hh
+++ b/klm/util/scoped.hh
@@ -20,7 +20,9 @@ template <class T, class R, R (*Free)(T*)> class scoped_thing {
     }
 
     T &operator*() { return *c_; }
+    const T&operator*() const { return *c_; }
     T &operator->() { return *c_; }
+    const T&operator->() const { return *c_; }
 
     T *get() { return c_; }
     const T *get() const { return c_; }
@@ -80,6 +82,34 @@ class scoped_FILE {
     std::FILE *file_;
 };
 
+// Hat tip to boost.  
+template <class T> class scoped_array {
+  public:
+    explicit scoped_array(T *content = NULL) : c_(content) {}
+
+    ~scoped_array() { delete [] c_; }
+
+    T *get() { return c_; }
+    const T* get() const { return c_; }
+
+    T &operator*() { return *c_; }
+    const T&operator*() const { return *c_; }
+
+    T &operator->() { return *c_; }
+    const T&operator->() const { return *c_; }
+
+    T &operator[](std::size_t idx) { return c_[idx]; }
+    const T &operator[](std::size_t idx) const { return c_[idx]; }
+
+    void reset(T *to = NULL) {
+      scoped_array<T> other(c_);
+      c_ = to;
+    }
+
+  private:
+    T *c_;
+};
+
 } // namespace util
 
 #endif // UTIL_SCOPED__
-- 
cgit v1.2.3