core layer

.clang-format

@@ -44,6 +44,7 @@ IncludeCategories:
 IncludeIsMainRegex: '([-_](test|unittest))?$'
 IndentAccessModifiers: false
 IndentCaseBlocks: true
+IndentPPDirectives: AfterHash
 IndentWidth: 4
 InsertNewlineAtEOF: true
 MacroBlockBegin: ''
@@ -57,6 +58,7 @@ PenaltyBreakString: 100
 PenaltyExcessCharacter: 1
 PenaltyReturnTypeOnItsOwnLine: 1000
 PointerAlignment: Left
+PPIndentWidth: 1
 SortIncludes: CaseInsensitive
 SpacesInAngles: Never
 SpacesInContainerLiterals: false