Personal style for clang automatic reformatting.

.clang-format

# Personal style for automatic reformatting.
# https://google.github.io/styleguide/cppguide.html
# See Clang docs: http://clang.llvm.org/docs/ClangFormatStyleOptions.html
BasedOnStyle: Google

# Allow double brackets such as std::vector<std::vector<int>>.
Standard: Cpp11

# Indent 4 spaces at a time.
IndentWidth: 4

# Use 2 space negative offset for access modifiers
AccessModifierOffset: -2

# Keep lines under 180 columns long.
ColumnLimit: 180

# Always break before braces
BreakBeforeBraces: Custom
BraceWrapping:
  AfterCaseLabel: false
  AfterClass: true
  AfterControlStatement: false
  AfterEnum: false
  AfterFunction: true
  AfterNamespace: true
  AfterStruct: false
  AfterUnion: true
  BeforeCatch: false
  BeforeElse: false
  IndentBraces: false
  SplitEmptyFunction: false
  SplitEmptyRecord: false
  SplitEmptyNamespace: false

  # Keeps extern "C" blocks unindented.
  AfterExternBlock: false

# Indent
IndentCaseLabels: true
IndentPPDirectives: BeforeHash
IncludeBlocks: Preserve

# Align
AlignOperands: true
AlignConsecutiveAssignments: true
AlignTrailingComments: true
AlignConsecutiveMacros: true

# Right-align pointers and references
PointerAlignment: Right

# AllowShort
AllowShortCaseLabelsOnASingleLine: false

# KeepEmptyLines
KeepEmptyLinesAtTheStartOfBlocks: true