diff --git a/src/lib/data/fulltextsearch/SuffixArray.cpp b/src/lib/data/fulltextsearch/SuffixArray.cpp
index c2514f01..34b3badd 100644
--- a/src/lib/data/fulltextsearch/SuffixArray.cpp
+++ b/src/lib/data/fulltextsearch/SuffixArray.cpp
@@ -26,7 +26,7 @@ void SuffixArray::printArray() const
 {
 	std::cout << "Suffix Array : \n";
 	printArr(m_array);
-	for (int i = 0; i < m_array.size(); i++)
+	for (size_t i = 0; i < m_array.size(); i++)
 	{
 		std::wstring suffix = m_text.substr(m_array[i]);
 		std::wcout << i << ": \"" << suffix << "\"" << std::endl;
@@ -37,7 +37,7 @@ void SuffixArray::printLCP() const
 {
 	std::cout << "\nLCP Array : \n";
 	printArr(m_lcp);
-	for (int i = 0; i < m_array.size(); i++)
+	for (size_t i = 0; i < m_array.size(); i++)
 	{
 		std::wstring prefix = m_text.substr(m_array[i], m_lcp[i]);
 		std::wcout << i << ": \"" << prefix << "\"" << std::endl;
diff --git a/src/lib/utility/LowMemoryStringMap.h b/src/lib/utility/LowMemoryStringMap.h
index cddfd180..d4286712 100644
--- a/src/lib/utility/LowMemoryStringMap.h
+++ b/src/lib/utility/LowMemoryStringMap.h
@@ -396,7 +396,7 @@ private:
 			idx++;
 
 			std::unique_ptr<Node> child = std::move(it->second);
-			const StringT& childStr = child->getString();
+			StringT childStr = child->getString();
 
 			auto p = std::mismatch(childStr.begin(), childStr.end(), str.begin() + idx);
 
@@ -471,7 +471,7 @@ private:
 
 		void print(StreamT& os, size_t depth) const override
 		{
-			const StringT& myStr = this->getString();
+			StringT myStr = this->getString();
 			if (myStr.size())
 			{
 				os << StringT(depth, ' ') << myStr << std::endl;
@@ -491,7 +491,7 @@ private:
 
 		std::unique_ptr<Branch> split(std::unique_ptr<Node> node, size_t idx) const
 		{
-			const StringT& str = node->getString();
+			StringT str = node->getString();
 			std::unique_ptr<Branch> frontBranch = createBranch(str.substr(0, idx));
 
 			CharT c(0);
diff --git a/src/lib_cxx/utility/codeblocks/CodeblocksCompilerVarType.cpp b/src/lib_cxx/utility/codeblocks/CodeblocksCompilerVarType.cpp
index c841bc03..9ec30a08 100644
--- a/src/lib_cxx/utility/codeblocks/CodeblocksCompilerVarType.cpp
+++ b/src/lib_cxx/utility/codeblocks/CodeblocksCompilerVarType.cpp
@@ -12,6 +12,8 @@ namespace Codeblocks
 			return "C";
 		case COMPILER_VAR_WINDRES:
 			return "WINDRES";
+		default:
+			break;
 		}
 		return "unknown";
 	}