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authorgraehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>2010-07-16 01:56:51 +0000
committergraehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>2010-07-16 01:56:51 +0000
commitf15664f3c9f2443b96c30735feae01bc3552d3b5 (patch)
tree0be425c5c217af05c81a1f6d5cf12a9dcda44148 /decoder
parent8d7ee7ad908b1fd797881a140057f3504b845b87 (diff)
disable ill defined operations, add binary + -
git-svn-id: https://ws10smt.googlecode.com/svn/trunk@278 ec762483-ff6d-05da-a07a-a48fb63a330f
Diffstat (limited to 'decoder')
-rw-r--r--decoder/sparse_vector.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/decoder/sparse_vector.h b/decoder/sparse_vector.h
index 455a162b..9c7c9c79 100644
--- a/decoder/sparse_vector.h
+++ b/decoder/sparse_vector.h
@@ -176,6 +176,17 @@ public:
return *this;
}
+ friend SparseVector<T> operator -(SparseVector<T> x,SparseVector<T> const& y) {
+ x-=y;
+ return x;
+ }
+ friend SparseVector<T> operator +(SparseVector<T> x,SparseVector<T> const& y) {
+ x+=y;
+ return x;
+ }
+
+private:
+ // DEPRECATED: becuase 0 values are dropped from the map, this doesn't even make sense if you have a fully populated (not really sparse re: what you'll ever use) vector
SparseVector<T> &operator-=(T const& x) {
for (typename MapType::iterator
it = values_.begin(); it != values_.end(); ++it)
@@ -189,7 +200,7 @@ public:
it->second += x;
return *this;
}
-
+public:
SparseVector<T> &operator/=(const T &x) {
for (typename MapType::iterator
it = values_.begin(); it != values_.end(); ++it)