From 9dcf7e7f08c045e5f1272647567348e73fb758ea Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Wed, 21 Aug 2019 19:28:10 -0400
Subject: [PATCH] hecl/hecl: Add smart pointer variant of Fopen

Provides a wrapper API over Fopen in order to prevent resource leaks.
---
 hecl/include/hecl/hecl.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hecl/include/hecl/hecl.hpp b/hecl/include/hecl/hecl.hpp
index f3e9fdb58..e679699af 100644
--- a/hecl/include/hecl/hecl.hpp
+++ b/hecl/include/hecl/hecl.hpp
@@ -275,6 +275,16 @@ inline FILE* Fopen(const SystemChar* path, const SystemChar* mode, FileLockType
   return fp;
 }
 
+struct UniqueFileDeleter {
+  void operator()(FILE* file) const noexcept { std::fclose(file); }
+};
+using UniqueFilePtr = std::unique_ptr<FILE, UniqueFileDeleter>;
+
+inline UniqueFilePtr FopenUnique(const SystemChar* path, const SystemChar* mode,
+                                 FileLockType lock = FileLockType::None) {
+  return UniqueFilePtr{Fopen(path, mode, lock)};
+}
+
 inline int FSeek(FILE* fp, int64_t offset, int whence) {
 #if _WIN32
   return _fseeki64(fp, offset, whence);