[mlpack-git] master: Add empty constructor. (2dbeb4e)

[gitdub at big.cc.gt.atl.ga.us]

Repository : https://github.com/mlpack/mlpack

On branch  : master
Link       : https://github.com/mlpack/mlpack/compare/962a37fe8374913c435054aa50e12d912bdfa01c...a7d8231fe7526dcfaadae0bf37d67b50d286e45d

>---------------------------------------------------------------

commit 2dbeb4e226d9fb501d99088d931688578032aaf1
Author: Ryan Curtin <ryan at ratml.org>
Date:   Fri Nov 20 21:37:04 2015 +0000

    Add empty constructor.


>---------------------------------------------------------------

2dbeb4e226d9fb501d99088d931688578032aaf1
 src/mlpack/methods/lsh/lsh_search.hpp      |  6 ++++++
 src/mlpack/methods/lsh/lsh_search_impl.hpp | 15 +++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/src/mlpack/methods/lsh/lsh_search.hpp b/src/mlpack/methods/lsh/lsh_search.hpp
index 2832b87..a490e5d 100644
--- a/src/mlpack/methods/lsh/lsh_search.hpp
+++ b/src/mlpack/methods/lsh/lsh_search.hpp
@@ -72,6 +72,12 @@ class LSHSearch
             const size_t bucketSize = 500);
 
   /**
+   * Create an untrained LSH model.  Be sure to call Train() before calling
+   * Search(); otherwise, an exception will be thrown when Search() is called.
+   */
+  LSHSearch();
+
+  /**
    * Clean memory.
    */
   ~LSHSearch();
diff --git a/src/mlpack/methods/lsh/lsh_search_impl.hpp b/src/mlpack/methods/lsh/lsh_search_impl.hpp
index 8f6d167..66a78be 100644
--- a/src/mlpack/methods/lsh/lsh_search_impl.hpp
+++ b/src/mlpack/methods/lsh/lsh_search_impl.hpp
@@ -35,6 +35,21 @@ LSHSearch(const arma::mat& referenceSet,
       bucketSize);
 }
 
+// Empty constructor.
+template<typename SortPolicy>
+LSHSearch<SortPolicy>::LSHSearch() :
+    referenceSet(new arma::mat()), // empty dataset
+    ownsSet(true),
+    numProj(0),
+    numTables(0),
+    hashWidth(0),
+    secondHashSize(99901),
+    bucketSize(500),
+    distanceEvaluations(0)
+{
+  // Nothing to do.
+}
+
 // Destructor.
 template<typename SortPolicy>
 LSHSearch<SortPolicy>::~LSHSearch()