.clang-format

---
## C++, latest standard.
Language: Cpp
Standard: Latest

## How far `public:`, `private:`, and `protected:` are indented.
AccessModifierOffset: -4

## If a function decl or call's opening paren is at the end of a line,
## format its arguments like so:
##
##     int foo(
##         int a,
##         int b
##     );
##
AlignAfterOpenBracket: BlockIndent

## Don’t align arrays or initialiser lists.
AlignArrayOfStructures: None

## Don’t align assignments because that leads to too much extra whitespace.
AlignConsecutiveAssignments: None

## So is aligning bitfields.
AlignConsecutiveBitFields: Consecutive

## Same as declarations: nope.
AlignConsecutiveDeclarations: None

## Aligning macros is usually fine tho.
AlignConsecutiveMacros: Consecutive

## Escaped newlines in macros should be aligned like so:
##
##   #define foo(x)  \
##       do {        \
##           bar(x); \
##           baz(x); \
##       } while (0)
AlignEscapedNewlines: Left

## Align operands of binary expressions like so:
##
##     int a = 1 + 2 + 3 + 4
##           + 5 + 6 + 7 + 8
##           + 9 + 10;
##
## Note: BreakBeforeBinaryOperators also needs to be set appropriately.
AlignOperands: AlignAfterOperator

## This option also allows you to define across how many empty
## lines comments should be aligned, but I don’t want that so
## I just use a bool here.
##
## This aligns comments like so:
##
##     int bar = 42;               /// Comment.
##     std::string foobarbaz = ""; /// Another comment.
AlignTrailingComments: true

## Don’t allow this:
##
##     foobarbaz(
##         a, b, c, d);
##
## Instead, BinPackArguments will format it like so:
##
##     foobarbaz(
##         a,
##         b,
##         c,
##         d
##     );
AllowAllArgumentsOnNextLine: false
AllowAllParametersOfDeclarationOnNextLine: false

## Allow these:
##
##     for (;;) { foo(); }
##
##     case 1: foo(); break;
##
##     enum { A, B };
##
##     int foo() { bar(); }
##
##     if (foo()) bar();
##     else baz();
##
##     auto lambda []() { return 0; }
##
##     for (;;) foo();
AllowShortBlocksOnASingleLine: Always
AllowShortCaseLabelsOnASingleLine: true
AllowShortEnumsOnASingleLine: true
AllowShortFunctionsOnASingleLine: All
AllowShortIfStatementsOnASingleLine: AllIfsAndElse
AllowShortLambdasOnASingleLine: All
AllowShortLoopsOnASingleLine: true

## Don’t do this horribleness, ever:
##
##     int
##     foo() { ...
AlwaysBreakAfterReturnType: None

## Break before multiline strings like so:
##
##     auto s =
##         "This is a "
##         "multiline string.";
AlwaysBreakBeforeMultilineStrings: true

## Don’t force break template declarations (i.e. the template
## param list and the rest of the signature/definition may be
## on the same line).
AlwaysBreakTemplateDeclarations: No

## Identifiers that should be interpreted as attributes.
AttributeMacros: ['__forceinline']

## Function parameters are either all on the same line,
## or all on separate lines.
BinPackArguments: false
BinPackParameters: false

## Space before and after the ':' in bitfields.
BitFieldColonSpacing: Both

## Leave line breaks around attributes alone.
BreakAfterAttributes: Leave

## Break *after*, and not before operators.
BreakBeforeBinaryOperators: None

## NEVER put opening braces on a new line.
BreakBeforeBraces: Attach

## This is AlwaysBreakTemplateDeclarations, but for concept decls.
BreakBeforeConceptDeclarations: Allowed

## Put the colons of multiline inline ASM on new lines.
BreakBeforeInlineASMColon: OnlyMultiline

## Format ternaries like so:
##
##     auto foo = bar
##         ? baz
##         : qux;
BreakBeforeTernaryOperators: true

## Format ctors like so:
##
##     Constructor()
##         : bar(42)
##         , baz(23)
#BreakConstructorInitializers: BeforeComma

## Same thing, but for class declarations.
BreakInheritanceList: BeforeComma

## Allow breaking long string literals across multiple lines.
BreakStringLiterals: true

## This disables the column limit. Rather unintuitively, this is
## also the only way to get clang-format to not remove all manually
## inserted line breaks.
ColumnLimit: 0

## Nested namespace declarations are on different lines. If they
## should be on the same line, just write `namespace foo::bar` instead.
CompactNamespaces: false

## Set to the same value as IndentWidth.
ConstructorInitializerIndentWidth: 4
ContinuationIndentWidth: 4

## Format braced init lists appropriately.
##
## > Fundamentally, C++11 braced lists are formatted exactly like
## > function calls would be formatted in their place. If the braced
## > list follows a name (e.g. a type or variable name), clang-format
## > formats as if the {} were the parentheses of a function call with
## > that name.
Cpp11BracedListStyle: true

## Do NOT attempt to infer pointer alignment. Format it to what I want
## it to be.
DerivePointerAlignment: false

## Duh.
DisableFormat: false

## Never put empty lines after `private:` etc.
EmptyLineAfterAccessModifier: Never

## Empty lines before access modifiers should be left alone.
EmptyLineBeforeAccessModifier: Leave

## Insert a `// namespace foo` comment after the closing brace of a
## namespace.
FixNamespaceComments: true

## Macros that should be formatted like the `for` keyword.
ForEachMacros: ["repeat", "until"]

## Same thing, but for `if`.
IfMacros: []

## Merge include blocks, sort them, and resplit.
IncludeBlocks: Regroup

## Enable outdenting `private:`.
# NOTE: This setting currently causes the content of structs
# to be indented twice.
#IndentAccessModifiers: true

## Don’t indent case blocks. Note, this is not about case *labels*,
## but the actual blocks of code. The labels *will* be indented, so
## we don’t need any extra indentation here.
IndentCaseBlocks: false

## Indent `case foo:` relative to the `switch`. We do this is because,
## otherwise, we can end up w/ two `}` on the same line like so:
##
##     switch (foo) {
##     case 1: {
##         bar();
##         break;
##     }
##     }
IndentCaseLabels: true

## We disable indenting the contents of `extern "C" {}` blocks, simply
## because indentation in such blocks is pretty useless as they tend to
## be rather long and often enough, an entire file would just end up
## being indented more than it needs to be.
IndentExternBlock: NoIndent

## We want goto labels to be indented relative to the current scope.
IndentGotoLabels: true

## Indent CPP directives after the `#` sign.
IndentPPDirectives: AfterHash

## Do NOT indent requires clauses.
IndentRequiresClause: false

## Four spaces. This is the only correct value.
IndentWidth: 4

## This should never happen anyway, but just in case, don’t.
IndentWrappedFunctionNames: false

## This would do the opposite of what I have spent far too much
## time to fix manually.
InsertBraces: false

## I keep forgetting about this, and I’d prefer to be consistent
## about it, so, therefore:
InsertNewlineAtEOF: true

## Format integer literals:
IntegerLiteralSeparator:
  Binary: 4
  Decimal: 3
  Hex: 4

## This one is pretty self-explanatory.
KeepEmptyLinesAtTheStartOfBlocks: false

## Indent lambda bodies relative to the outer scope, and not
## relative to the indentation of the signature.
LambdaBodyIndentation: OuterScope

## Use LF, never CRLF.
LineEnding: LF

## Don’t allow multiple consecutive empty lines.
MaxEmptyLinesToKeep: 1

## Don’t indent namespaces. See the `extern "C"` option above,
## for more information as to why we disable this.
NamespaceIndentation: None

## Reuse IndentWidth.
PPIndentWidth: -1

## Format ctor initialisers sensibly. Put all of them on the same line if
## they fit, and put them on separate lines if they don’t.
#PackConstructorInitializers: CurrentLine

## We don’t want this to happen. Ever.
PenaltyReturnTypeOnItsOwnLine: 4294967295

## Left for C++, Right for C.
PointerAlignment: Left

## Leave qualifiers where they are as the docs state that this option
## may lead to incorrect code.
QualifierAlignment: Leave

## I suck at being consistent about this, so therefore:
## TODO: Figure out why CLion’s clang-format is rejecting this...
#QualifierOrder: ['friend', 'static', 'inline', 'constexpr', 'const', 'volatile', 'restrict', 'type']

## Should always be left, unless C decides to add references some day.
ReferenceAlignment: Left

## Allow reflowing comments. Not sure if this does anything since we’ve disabled the col limit.
ReflowComments: true

## Requires clauses go on a separate line.
RequiresClausePosition: OwnLine

## Thank goodness they finally added this. The default formatting used to be
## absolutely atrocious, because no, I don’t want all of my concept declarations
## to be indented 10 spaces or whatnot.
RequiresExpressionIndentation: OuterScope

## I know better when to separate stuff than clang-format.
SeparateDefinitionBlocks: Leave

## Five lines is short, I guess.
ShortNamespaceLines: 5

## Sort include directives.
SortIncludes: CaseInsensitive

## Sort using decls alphabetically.
# TODO: Set to Lexicographic
SortUsingDeclarations: true

## Space after C-style cast.
SpaceAfterCStyleCast: true

## No space after `!`.
SpaceAfterLogicalNot: false

## Put a space after `template`
SpaceAfterTemplateKeyword: true

## Ignore this option and use PointerAlignment instead.
SpaceAroundPointerQualifiers: Default

## Put spaces around `=` and friends.
SpaceBeforeAssignmentOperators: true

## We *definitely* don’t want spaces before a case colon.
SpaceBeforeCaseColon: false

## We want to treat init lists like function calls, so no space.
SpaceBeforeCpp11BracedList: false

## Funnily enough, we *do* want spaces before these colons
SpaceBeforeCtorInitializerColon: true
SpaceBeforeInheritanceColon: true
SpaceBeforeRangeBasedForLoopColon: true

## Spaces before parens:
SpaceBeforeParens: Custom
SpaceBeforeParensOptions:
  AfterControlStatements: true
  AfterForeachMacros: true
  AfterFunctionDeclarationName: false
  AfterFunctionDefinitionName: false
  AfterIfMacros: true
  AfterOverloadedOperator: false
  AfterRequiresInClause: true
  AfterRequiresInExpression: true
  BeforeNonEmptyParentheses: false

## No space before subscripts.
SpaceBeforeSquareBrackets: false

## Empty block should be {}, not { }.
SpaceInEmptyBlock: false

## Same thing for parens.
SpaceInEmptyParentheses: false

## At least one space before trailing comments.
SpacesBeforeTrailingComments: 1

## Never put spaces in angle brackets.
SpacesInAngles: Never

## We definitely don’t want this.
SpacesInCStyleCastParentheses: false

## Or this.
SpacesInConditionalStatement: false

## Spaces at the beginning of line comments.
## Minimum: At least one.
## Maximum: More are allowed.
SpacesInLineCommentPrefix:
  Minimum: 1
  Maximum: -1

## Disable this too.
SpacesInParentheses: false

## And this.
SpacesInSquareBrackets: false

## Currently not used, but it’s here for future reference.
StatementAttributeLikeMacros: []

## Macros that should be treated as statements.
StatementMacros: []

## Tabs are four columns.
TabWidth: 4

## Macros that create type names.
TypenameMacros: []

## NEVER use tabs. They only cause problems.
UseTab: Never

## Some macros care about whitespace.
WhitespaceSensitiveMacros: ['STR', 'STR_']

...