1 files changed, 8 insertions, 1 deletions
diff --git a/src/support/file.h b/src/support/file.h
index 0f0ec15f3..b0df8fd06 100644
--- a/src/support/file.h
+++ b/src/support/file.h
@@ -66,6 +66,13 @@ class Output {
   std::ofstream outfile;
   std::ostream out;
 };
-}
+
+// Copies a file to another file
+void copy_file(std::string input, std::string output);
+
+// Retusn the size of a file
+size_t file_size(std::string filename);
+
+} // namespace wasm
 
 #endif  // wasm_support_file_h