From da5c53c499b0b697fe4c04d2aca44fb24a44ca33 Mon Sep 17 00:00:00 2001
From: bugdea1er <bugdealer@icloud.com>
Date: Mon, 23 Sep 2024 22:39:31 +0300
Subject: [PATCH] Inherit `hash` from `tmp::entry`

---
 include/tmp/directory | 5 +----
 include/tmp/file      | 5 +----
 src/directory.cpp     | 6 ------
 src/file.cpp          | 6 ------
 4 files changed, 2 insertions(+), 20 deletions(-)

diff --git a/include/tmp/directory b/include/tmp/directory
index 875ab39..723553e 100644
--- a/include/tmp/directory
+++ b/include/tmp/directory
@@ -4,7 +4,6 @@
 #include <tmp/entry>
 #include <tmp/export>
 
-#include <cstddef>
 #include <filesystem>
 #include <string_view>
 
@@ -78,8 +77,6 @@ private:
 }    // namespace tmp
 
 /// The template specialization of `std::hash` for `tmp::directory`
-template<> struct TMP_EXPORT std::hash<tmp::directory> {
-  std::size_t operator()(const tmp::directory& directory) const noexcept;
-};
+template<> struct std::hash<tmp::directory> : public std::hash<tmp::entry> {};
 
 #endif    // TMP_DIRECTORY_H
diff --git a/include/tmp/file b/include/tmp/file
index 07ac493..3a1ebc3 100644
--- a/include/tmp/file
+++ b/include/tmp/file
@@ -4,7 +4,6 @@
 #include <tmp/entry>
 #include <tmp/export>
 
-#include <cstddef>
 #include <filesystem>
 #include <fstream>
 #include <ios>
@@ -125,8 +124,6 @@ private:
 }    // namespace tmp
 
 /// The template specialization of `std::hash` for `tmp::file`
-template<> struct TMP_EXPORT std::hash<tmp::file> {
-  std::size_t operator()(const tmp::file& file) const noexcept;
-};
+template<> struct std::hash<tmp::file> : public std::hash<tmp::entry> {};
 
 #endif    // TMP_FILE_H
diff --git a/src/directory.cpp b/src/directory.cpp
index 19bbc9d..b04724b 100644
--- a/src/directory.cpp
+++ b/src/directory.cpp
@@ -3,7 +3,6 @@
 
 #include "utils.hpp"
 
-#include <cstddef>
 #include <filesystem>
 #include <string_view>
 #include <system_error>
@@ -104,8 +103,3 @@ directory::~directory() noexcept = default;
 directory::directory(directory&&) noexcept = default;
 directory& directory::operator=(directory&&) noexcept = default;
 }    // namespace tmp
-
-std::size_t std::hash<tmp::directory>::operator()(
-    const tmp::directory& directory) const noexcept {
-  return std::hash<tmp::entry>()(directory);
-}
diff --git a/src/file.cpp b/src/file.cpp
index 85118cd..a1e0055 100644
--- a/src/file.cpp
+++ b/src/file.cpp
@@ -3,7 +3,6 @@
 
 #include "utils.hpp"
 
-#include <cstddef>
 #include <filesystem>
 #include <fstream>
 #include <ios>
@@ -124,8 +123,3 @@ file::~file() noexcept = default;
 file::file(file&&) noexcept = default;
 file& file::operator=(file&& other) noexcept = default;
 }    // namespace tmp
-
-std::size_t
-std::hash<tmp::file>::operator()(const tmp::file& file) const noexcept {
-  return std::hash<tmp::entry>()(file);
-}