X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fcontainer-wrapper.hpp;h=25385fc43837961ec4301dd9f7254f0b89ccc3b6;hb=HEAD;hp=7f9678d08d3cb8252de645bd3731434d73b4e52a;hpb=69e98ad60c01ddfbfa6eb843960f77804173dd0f;p=lttng-tools.git

diff --git a/src/common/container-wrapper.hpp b/src/common/container-wrapper.hpp
index 7f9678d08..25385fc43 100644
--- a/src/common/container-wrapper.hpp
+++ b/src/common/container-wrapper.hpp
@@ -60,6 +60,11 @@ class random_access_container_wrapper {
 			return *this;
 		}
 
+		ptrdiff_t operator-(const _iterator& other) const
+		{
+			return _index - other._index;
+		}
+
 		bool operator==(const _iterator& other) const noexcept
 		{
 			return _index == other._index;
@@ -117,6 +122,11 @@ public:
 		return ContainerOperations::size(_container);
 	}
 
+	bool empty() const
+	{
+		return size() == 0;
+	}
+
 	typename std::conditional<std::is_pointer<ElementType>::value, ElementType, ElementType&>::type
 	operator[](std::size_t index)
 	{
@@ -144,7 +154,7 @@ public:
 	operator[](std::size_t index) const
 	{
 		if (index >= ContainerOperations::size(_container)) {
-			LTTNG_THROW_INVALID_ARGUMENT_ERROR(lttng::format(
+			throw std::invalid_argument(lttng::format(
 				"Out of bound access through random_access_container_wrapper: index={}, size={}",
 				index,
 				size()));