Added SparsePtr substraction operator

Former-commit-id: e2dadc06b1f1abbd257689e6eaee77ebbfa0af5b
2015-01-03 21:50:37 +01:00
parent e6090c80a8
commit ad3c70bbc8
2 changed files with 8 additions and 0 deletions
--- a/include/Nazara/Core/SparsePtr.inl
+++ b/include/Nazara/Core/SparsePtr.inl
@@ -133,6 +133,12 @@ NzSparsePtr<T> NzSparsePtr<T>::operator-(int count) const
 	return NzSparsePtr(m_ptr - count*m_stride, m_stride);
 }

+template<typename T>
+std::ptrdiff_t NzSparsePtr<T>::operator-(const NzSparsePtr& ptr) const
+{
+	return (m_ptr - ptr.m_ptr)/m_stride;
+}
+
 template<typename T>
 NzSparsePtr<T>& NzSparsePtr<T>::operator+=(int count)
 {