Set up: clang-format, clang-tidy

.clang-format

@@ -0,0 +1,38 @@
+BasedOnStyle: Google
+Language: Cpp
+Standard: c++17
+UseTab: Never
+DerivePointerAlignment: false
+PointerAlignment: Left
+ColumnLimit: 120
+
+AllowShortLambdasOnASingleLine: None
+AllowShortFunctionsOnASingleLine: None
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortEnumsOnASingleLine: true # if false then enums would be formatted as Allman braces style
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowAllArgumentsOnNextLine: false
+LambdaBodyIndentation: Signature
+BraceWrapping:
+  BeforeLambdaBody: true
+AlignEscapedNewlines: Right
+ContinuationIndentWidth: 2
+ConstructorInitializerIndentWidth: 2
+AlignAfterOpenBracket: Align
+
+IncludeCategories:
+  - Regex: '^".*"$'              # relative includes
+    Priority: 10
+  - Regex: '^<ione\/.*>$'      # our library public includes
+    Priority: 30
+  - Regex: '^<[[:alpha:]_\/]+>$' # STL
+    Priority: 40
+  - Regex: '^<.*\.hpp>$'         # our library private includes
+    Priority: 20
+  - Regex: '.*'                  # other libraries (system headers in our case)
+    Priority: 50
+IncludeBlocks: Regroup
+IndentPPDirectives: AfterHash

.clang-tidy

@@ -0,0 +1,73 @@
+Checks: '*,
+         -abseil-*,
+         -altera-*,
+         -android-*,
+         -boost-*,
+         -google-objc-*,
+         -linuxkernel-*,
+         -llvmlibc-*,
+         -mpi-*,
+         -objc-*,
+         -openmp-*,
+
+         -cert-err58-cpp,
+         -cppcoreguidelines-pro-type-static-cast-downcast,
+         -fuchsia-default-arguments-*,
+         -google-build-using-namespace,
+         -modernize-use-trailing-return-type,
+         -readability-identifier-length,
+         -fuchsia-overloaded-operator,
+         -cppcoreguidelines-pro-type-union-access,
+         -hicpp-named-parameter,
+         -modernize-use-default-member-init,
+         -readability-named-parameter,
+         -google-explicit-constructor,
+         -hicpp-explicit-conversions,
+         -llvm-header-guard,
+         -cppcoreguidelines-owning-memory'
+
+WarningsAsErrors: '*'
+
+HeaderFilterRegex: '^<.*\.hpp>$'
+
+CheckOptions:
+  - key: readability-identifier-naming.NamespaceCase
+    value: lower_case
+  - key: readability-identifier-naming.ClassCase
+    value: CamelCase
+  - key: readability-identifier-naming.StructCase
+    value: CamelCase
+  - key: readability-identifier-naming.TypedefCase
+    value: CamelCase
+  - key: readability-identifier-naming.TypeAliasCase
+    value: CamelCase
+  - key: readability-identifier-naming.FunctionCase
+    value: CamelCase
+  - key: readability-identifier-naming.ParameterCase
+    value: lower_case
+  - key: readability-identifier-naming.VariableCase
+    value: lower_case
+  - key: readability-identifier-naming.PrivateMemberCase
+    value: lower_case
+  - key: readability-identifier-naming.PrivateMemberPrefix
+    value: _
+  - key: readability-identifier-naming.GlobalConstantCase
+    value: CamelCase
+  - key: readability-identifier-naming.GlobalConstantPrefix
+    value: k
+  - key: readability-identifier-naming.StaticConstantCase
+    value: CamelCase
+  - key: readability-identifier-naming.StaticConstantPrefix
+    value: k
+  - key: readability-identifier-naming.ConstexprVariableCase
+    value: CamelCase
+  - key: readability-identifier-naming.ConstexprVariablePrefix
+    value: k
+  - key: readability-identifier-naming.TypeTemplateParameterCase
+    value: CamelCase
+  - key: readability-simplify-boolean-expr.ChainedConditionalReturn
+    value: 1
+  - key: readability-simplify-boolean-expr.ChainedConditionalAssignment
+    value: 1
+  - key: misc-non-private-member-variables-in-classes.IgnoreClassesWithAllMemberVariablesBeingPublic
+    value: 1