add clang-format

.clang-format

@@ -0,0 +1,143 @@
+BasedOnStyle: Microsoft
+
+# To apply code style please run:
+# find ./src -iname *.h -o -iname *.cpp | xargs clang-format -i
+
+# To dump Microsoft style options run:
+# clang-format -style=microsoft -dump-config > .clang-format
+# ---
+# Language:        Cpp
+# AccessModifierOffset: -2
+# AlignAfterOpenBracket: Align
+# AlignConsecutiveMacros: false
+# AlignConsecutiveAssignments: false
+# AlignConsecutiveDeclarations: false
+# AlignEscapedNewlines: Right
+# AlignOperands:   true
+# AlignTrailingComments: true
+# AllowAllArgumentsOnNextLine: true
+# AllowAllConstructorInitializersOnNextLine: true
+# AllowAllParametersOfDeclarationOnNextLine: true
+# AllowShortBlocksOnASingleLine: Never
+# AllowShortCaseLabelsOnASingleLine: false
+# AllowShortFunctionsOnASingleLine: None
+# AllowShortLambdasOnASingleLine: All
+# AllowShortIfStatementsOnASingleLine: Never
+# AllowShortLoopsOnASingleLine: false
+# AlwaysBreakAfterDefinitionReturnType: None
+# AlwaysBreakAfterReturnType: None
+# AlwaysBreakBeforeMultilineStrings: false
+# AlwaysBreakTemplateDeclarations: MultiLine
+# BinPackArguments: true
+# BinPackParameters: true
+# BraceWrapping:
+  # AfterCaseLabel:  false
+  # AfterClass:      true
+  # AfterControlStatement: true
+  # AfterEnum:       true
+  # AfterFunction:   true
+  # AfterNamespace:  true
+  # AfterObjCDeclaration: true
+  # AfterStruct:     true
+  # AfterUnion:      false
+  # AfterExternBlock: true
+  # BeforeCatch:     true
+  # BeforeElse:      true
+  # IndentBraces:    false
+  # SplitEmptyFunction: true
+  # SplitEmptyRecord: true
+  # SplitEmptyNamespace: true
+# BreakBeforeBinaryOperators: None
+# BreakBeforeBraces: Custom
+# BreakBeforeInheritanceComma: false
+# BreakInheritanceList: BeforeColon
+# BreakBeforeTernaryOperators: true
+# BreakConstructorInitializersBeforeComma: false
+# BreakConstructorInitializers: BeforeColon
+# BreakAfterJavaFieldAnnotations: false
+# BreakStringLiterals: true
+# ColumnLimit:     120
+# CommentPragmas:  '^ IWYU pragma:'
+# CompactNamespaces: false
+# ConstructorInitializerAllOnOneLineOrOnePerLine: false
+# ConstructorInitializerIndentWidth: 4
+# ContinuationIndentWidth: 4
+# Cpp11BracedListStyle: true
+# DeriveLineEnding: true
+# DerivePointerAlignment: false
+# DisableFormat:   false
+# ExperimentalAutoDetectBinPacking: false
+# FixNamespaceComments: true
+# ForEachMacros:
+  # - foreach
+  # - Q_FOREACH
+  # - BOOST_FOREACH
+# IncludeBlocks:   Preserve
+# IncludeCategories:
+  # - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    # Priority:        2
+    # SortPriority:    0
+  # - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    # Priority:        3
+    # SortPriority:    0
+  # - Regex:           '.*'
+    # Priority:        1
+    # SortPriority:    0
+# IncludeIsMainRegex: '(Test)?$'
+# IncludeIsMainSourceRegex: ''
+# IndentCaseLabels: false
+# IndentGotoLabels: true
+# IndentPPDirectives: None
+# IndentWidth:     4
+# IndentWrappedFunctionNames: false
+# JavaScriptQuotes: Leave
+# JavaScriptWrapImports: true
+# KeepEmptyLinesAtTheStartOfBlocks: true
+# MacroBlockBegin: ''
+# MacroBlockEnd:   ''
+# MaxEmptyLinesToKeep: 1
+# NamespaceIndentation: None
+# ObjCBinPackProtocolList: Auto
+# ObjCBlockIndentWidth: 2
+# ObjCSpaceAfterProperty: false
+# ObjCSpaceBeforeProtocolList: true
+# PenaltyBreakAssignment: 2
+# PenaltyBreakBeforeFirstCallParameter: 19
+# PenaltyBreakComment: 300
+# PenaltyBreakFirstLessLess: 120
+# PenaltyBreakString: 1000
+# PenaltyBreakTemplateDeclaration: 10
+# PenaltyExcessCharacter: 1000000
+# PenaltyReturnTypeOnItsOwnLine: 1000
+# PointerAlignment: Right
+# ReflowComments:  true
+# SortIncludes:    true
+# SortUsingDeclarations: true
+# SpaceAfterCStyleCast: false
+# SpaceAfterLogicalNot: false
+# SpaceAfterTemplateKeyword: true
+# SpaceBeforeAssignmentOperators: true
+# SpaceBeforeCpp11BracedList: false
+# SpaceBeforeCtorInitializerColon: true
+# SpaceBeforeInheritanceColon: true
+# SpaceBeforeParens: ControlStatements
+# SpaceBeforeRangeBasedForLoopColon: true
+# SpaceInEmptyBlock: false
+# SpaceInEmptyParentheses: false
+# SpacesBeforeTrailingComments: 1
+# SpacesInAngles:  false
+# SpacesInConditionalStatement: false
+# SpacesInContainerLiterals: true
+# SpacesInCStyleCastParentheses: false
+# SpacesInParentheses: false
+# SpacesInSquareBrackets: false
+# SpaceBeforeSquareBrackets: false
+# Standard:        Latest
+# StatementMacros:
+  # - Q_UNUSED
+  # - QT_REQUIRE_VERSION
+# TabWidth:        4
+# UseCRLF:         false
+# UseTab:          Never
+# ...
+