introduced clang-format (close #733)

Author: skypjack

.clang-format

@@ -0,0 +1,41 @@
+BasedOnStyle: llvm
+---
+AccessModifierOffset: -4
+AlignEscapedNewlines: DontAlign
+AllowShortBlocksOnASingleLine: Empty
+AllowShortEnumsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: WithoutElse
+AllowShortLoopsOnASingleLine: true
+AlwaysBreakTemplateDeclarations: Yes
+BreakBeforeBinaryOperators: NonAssignment
+BreakBeforeTernaryOperators: true
+ColumnLimit: 0
+DerivePointerAlignment: false
+IncludeCategories:
+  - Regex: '<[[:alnum:]_]+>'
+    Priority: 1
+  - Regex: '<(gtest|gmock)/'
+    Priority: 2
+  - Regex: '<[[:alnum:]_./]+>'
+    Priority: 3
+  - Regex: '<entt/'
+    Priority: 4
+  - Regex: '.*'
+    Priority: 5
+IndentPPDirectives: AfterHash
+IndentWidth: 4
+KeepEmptyLinesAtTheStartOfBlocks: false
+Language: Cpp
+PointerAlignment: Right
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: false
+SpaceAroundPointerQualifiers: After
+SpaceBeforeCaseColon: false
+SpaceBeforeCtorInitializerColon: false
+SpaceBeforeInheritanceColon: false
+SpaceBeforeParens: Never
+SpaceBeforeRangeBasedForLoopColon: false
+Standard: Latest
+TabWidth: 4
+UseTab: Never

src/entt/config/config.h

@@ -1,81 +1,71 @@
 #ifndef ENTT_CONFIG_CONFIG_H
 #define ENTT_CONFIG_CONFIG_H
 
-
 #if defined(__cpp_exceptions) && !defined(ENTT_NOEXCEPTION)
-#   define ENTT_NOEXCEPT noexcept
-#   define ENTT_THROW throw
-#   define ENTT_TRY try
-#   define ENTT_CATCH catch(...)
+#    define ENTT_NOEXCEPT noexcept
+#    define ENTT_THROW throw
+#    define ENTT_TRY try
+#    define ENTT_CATCH catch(...)
 #else
-#   define ENTT_NOEXCEPT
-#   define ENTT_THROW
-#   define ENTT_TRY if(true)
-#   define ENTT_CATCH if(false)
+#    define ENTT_NOEXCEPT
+#    define ENTT_THROW
+#    define ENTT_TRY if(true)
+#    define ENTT_CATCH if(false)
 #endif
 
-
 #if defined(__cpp_lib_launder) && __cpp_lib_launder >= 201606L
-#   include <new>
-#   define ENTT_LAUNDER(expr) std::launder(expr)
+#    include <new>
+#    define ENTT_LAUNDER(expr) std::launder(expr)
 #else
-#   define ENTT_LAUNDER(expr) expr
+#    define ENTT_LAUNDER(expr) expr
 #endif
 
-
 #ifndef ENTT_USE_ATOMIC
-#   define ENTT_MAYBE_ATOMIC(Type) Type
+#    define ENTT_MAYBE_ATOMIC(Type) Type
 #else
-#   include <atomic>
-#   define ENTT_MAYBE_ATOMIC(Type) std::atomic<Type>
+#    include <atomic>
+#    define ENTT_MAYBE_ATOMIC(Type) std::atomic<Type>
 #endif
 
-
 #ifndef ENTT_ID_TYPE
-#   include <cstdint>
-#   define ENTT_ID_TYPE std::uint32_t
+#    include <cstdint>
+#    define ENTT_ID_TYPE std::uint32_t
 #endif
 
-
 #ifndef ENTT_SPARSE_PAGE
-#   define ENTT_SPARSE_PAGE 4096
+#    define ENTT_SPARSE_PAGE 4096
 #endif
 
-
 #ifndef ENTT_PACKED_PAGE
-#   define ENTT_PACKED_PAGE 1024
+#    define ENTT_PACKED_PAGE 1024
 #endif
 
-
 #ifdef ENTT_DISABLE_ASSERT
-#   undef ENTT_ASSERT
-#   define ENTT_ASSERT(...) (void(0))
+#    undef ENTT_ASSERT
+#    define ENTT_ASSERT(...) (void(0))
 #elif !defined ENTT_ASSERT
-#   include <cassert>
-#   define ENTT_ASSERT(condition, ...) assert(condition)
+#    include <cassert>
+#    define ENTT_ASSERT(condition, ...) assert(condition)
 #endif
 
-
 #ifdef ENTT_NO_ETO
-#   include <type_traits>
-#   define ENTT_IGNORE_IF_EMPTY std::false_type
+#    include <type_traits>
+#    define ENTT_IGNORE_IF_EMPTY std::false_type
 #else
-#   include <type_traits>
-#   define ENTT_IGNORE_IF_EMPTY std::true_type
+#    include <type_traits>
+#    define ENTT_IGNORE_IF_EMPTY std::true_type
 #endif
 
-
 #ifndef ENTT_STANDARD_CPP
 #    if defined __clang__ || defined __GNUC__
-#       define ENTT_PRETTY_FUNCTION __PRETTY_FUNCTION__
-#       define ENTT_PRETTY_FUNCTION_PREFIX '='
-#       define ENTT_PRETTY_FUNCTION_SUFFIX ']'
+#        define ENTT_PRETTY_FUNCTION __PRETTY_FUNCTION__
+#        define ENTT_PRETTY_FUNCTION_PREFIX '='
+#        define ENTT_PRETTY_FUNCTION_SUFFIX ']'
 #    elif defined _MSC_VER
-#       define ENTT_PRETTY_FUNCTION __FUNCSIG__
-#       define ENTT_PRETTY_FUNCTION_PREFIX '<'
-#       define ENTT_PRETTY_FUNCTION_SUFFIX '>'
-#   endif
+#        define ENTT_PRETTY_FUNCTION __FUNCSIG__
+#        define ENTT_PRETTY_FUNCTION_PREFIX '<'
+#        define ENTT_PRETTY_FUNCTION_SUFFIX '>'
+#    endif
 #endif
 
-
 #endif

src/entt/config/version.h

@@ -1,10 +1,8 @@
 #ifndef ENTT_CONFIG_VERSION_H
 #define ENTT_CONFIG_VERSION_H
 
-
 #define ENTT_VERSION_MAJOR 3
 #define ENTT_VERSION_MINOR 9
 #define ENTT_VERSION_PATCH 0
 
-
 #endif

src/entt/core/algorithm.hpp

@@ -1,18 +1,15 @@
 #ifndef ENTT_CORE_ALGORITHM_HPP
 #define ENTT_CORE_ALGORITHM_HPP
 
-
-#include <vector>
-#include <utility>
-#include <iterator>
 #include <algorithm>
 #include <functional>
+#include <iterator>
+#include <utility>
+#include <vector>
 #include "utility.hpp"
 
-
 namespace entt {
 
-
 /**
  * @brief Function object to wrap `std::sort` in a class type.
  *
@@ -36,12 +33,11 @@ struct std_sort {
      * @param args Arguments to forward to the sort function, if any.
      */
     template<typename It, typename Compare = std::less<>, typename... Args>
-    void operator()(It first, It last, Compare compare = Compare{}, Args &&... args) const {
+    void operator()(It first, It last, Compare compare = Compare{}, Args &&...args) const {
         std::sort(std::forward<Args>(args)..., std::move(first), std::move(last), std::move(compare));
     }
 };
 
-
 /*! @brief Function object for performing insertion sort. */
 struct insertion_sort {
     /**
@@ -62,8 +58,8 @@ struct insertion_sort {
                 auto value = std::move(*it);
                 auto pre = it;
 
-                for(; pre > first && compare(value, *(pre-1)); --pre) {
-                    *pre = std::move(*(pre-1));
+                for(; pre > first && compare(value, *(pre - 1)); --pre) {
+                    *pre = std::move(*(pre - 1));
                 }
 
                 *pre = std::move(value);
@@ -72,7 +68,6 @@ struct insertion_sort {
     }
 };
 
-
 /**
  * @brief Function object for performing LSD radix sort.
  * @tparam Bit Number of bits processed per pass.
@@ -137,8 +132,6 @@ struct radix_sort {
     }
 };
 
-
-}
-
+} // namespace entt
 
 #endif