formatting, small changes

.clang-format

@@ -0,0 +1,137 @@
+---
+Language: Cpp
+BasedOnStyle: GNU
+AccessModifierOffset: -4
+AlignConsecutiveAssignments: false
+AlignConsecutiveBitFields: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  AlignFunctionPointers: false
+  PadOperators: false
+AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  AlignFunctionPointers: false
+  PadOperators: false
+AlignConsecutiveShortCaseStatements: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCaseArrows: false
+  AlignCaseColons: false
+AlignConsecutiveTableGenBreakingDAGArgColons: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  AlignFunctionPointers: false
+  PadOperators: false
+AlignConsecutiveTableGenCondOperatorColons: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  AlignFunctionPointers: false
+  PadOperators: false
+AlignConsecutiveTableGenDefinitionColons: 
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  AlignFunctionPointers: false
+  PadOperators: false
+AlignOperands: true
+AlignTrailingComments: false
+AllowShortCaseExpressionOnASingleLine: true
+AllowShortCompoundRequirementOnASingleLine: true
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakTemplateDeclarations: Yes
+BraceWrapping: 
+  AfterCaseLabel: false
+  AfterClass: false
+  AfterControlStatement: false
+  AfterEnum: false
+  AfterFunction: false
+  AfterNamespace: false
+  AfterStruct: false
+  AfterUnion: false
+  AfterExternBlock: false
+  BeforeCatch: false
+  BeforeElse: false
+  BeforeLambdaBody: false
+  BeforeWhile: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakAdjacentStringLiterals: true
+BreakAfterAttributes: Leave
+BreakAfterReturnType: None
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakConstructorInitializers: AfterColon
+BreakConstructorInitializersBeforeComma: false
+BreakFunctionDefinitionParameters: false
+BreakTemplateDeclarations: MultiLine
+ColumnLimit: 120
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ContinuationIndentWidth: 8
+Cpp11BracedListStyle: true
+FixNamespaceComments: true
+IncludeCategories: 
+  - Regex: '^<.*'
+    Priority: 1
+  - Regex: '^".*'
+    Priority: 2
+  - Regex: '.*'
+    Priority: 3
+IncludeIsMainRegex: '([-_](test|unittest))?$'
+IndentCaseLabels: true
+IndentWidth: 4
+InsertNewlineAtEOF: true
+KeepEmptyLines: 
+  AtEndOfFile: false
+  AtStartOfBlock: true
+  AtStartOfFile: true
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MainIncludeChar: Quote
+MaxEmptyLinesToKeep: 2
+NamespaceIndentation: All
+PenaltyBreakScopeResolution: 500
+SkipMacroDefinitionBody: false
+SpaceAfterCStyleCast: true
+SpaceAfterTemplateKeyword: false
+SpaceBeforeParens: ControlStatements
+SpaceBeforeParensOptions: 
+  AfterControlStatements: true
+  AfterForeachMacros: true
+  AfterFunctionDefinitionName: false
+  AfterFunctionDeclarationName: false
+  AfterIfMacros: true
+  AfterOverloadedOperator: false
+  AfterPlacementOperator: true
+  AfterRequiresInClause: false
+  AfterRequiresInExpression: false
+  BeforeNonEmptyParentheses: false
+SpaceBeforeRangeBasedForLoopColon: false
+SpaceInEmptyParentheses: false
+SpacesInAngles: false
+SpacesInConditionalStatement: false
+SpacesInCStyleCastParentheses: false
+SpacesInParensOptions: 
+  ExceptDoubleParentheses: false
+  InCStyleCasts: false
+  InConditionalStatements: false
+  InEmptyParentheses: false
+  Other: false
+SpacesInParentheses: false
+Standard: Latest
+TableGenBreakInsideDAGArg: DontBreak
+TabWidth: 4
+...