Region: make visitor argument a reference

2 files changed, 2 insertions, 2 deletions

diff --git a/src/World/Region.cpp b/src/World/Region.cpp
index 4551d73..886f96b 100644
--- a/src/World/Region.cpp
+++ b/src/World/Region.cpp
@@ -54,7 +54,7 @@ Region::ChunkMap Region::processHeader(const uint8_t header[4096]) {
 	return map;
 }
 
-void Region::visitChunks(const char *filename, ChunkVisitor visitor) {
+void Region::visitChunks(const char *filename, const ChunkVisitor &visitor) {
 	std::ifstream file;
 	file.exceptions(std::ios::failbit | std::ios::badbit);
 	file.open(filename, std::ios::in | std::ios::binary);
diff --git a/src/World/Region.hpp b/src/World/Region.hpp
index d88dbe1..7a8088f 100644
--- a/src/World/Region.hpp
+++ b/src/World/Region.hpp
@@ -53,7 +53,7 @@ private:
 	static ChunkMap processHeader(const uint8_t header[4096]);
 
 public:
-	static void visitChunks(const char *filename, ChunkVisitor visitor);
+	static void visitChunks(const char *filename, const ChunkVisitor &visitor);
 };
 
 }