QMCPACK · correaa · Jun 18, 2026 · Jun 18, 2026 · Jun 18, 2026 · Jun 18, 2026
diff --git a/external_codes/boost_multi/README b/external_codes/boost_multi/README
@@ -1,3 +1,3 @@
-command to update subtree to v0.80.1 tag. Run from top level QMCPACK source directory
+command to update subtree to latest develop. Run from top level QMCPACK source directory
 
-git subtree pull --squash -P external_codes/boost_multi/multi https://gitlab.com/correaa/boost-multi.git v0.80.1
+git subtree pull --squash -P external_codes/boost_multi/multi https://gitlab.com/correaa/boost-multi.git develop
diff --git a/external_codes/boost_multi/multi/.clang-format b/external_codes/boost_multi/multi/.clang-format
@@ -1,230 +1,74 @@
+# https://clang-format-configurator.site
+# Copyright 2020-2026 Alfredo A. Correa
+# this format specification requires clang-format version 15, it is optimized for clang-format version 19
 ---
-Language:        Cpp
-# BasedOnStyle:  Google
-#AccessModifierOffset: -1
-AlignAfterOpenBracket: BlockIndent  # Align
+Language: Cpp
+AccessModifierOffset: -3
+AlignAfterOpenBracket: BlockIndent
 AlignArrayOfStructures: Right
-#AlignConsecutiveMacros: None
-AlignConsecutiveAssignments: Consecutive  # None
-#AlignConsecutiveBitFields: None
-AlignConsecutiveDeclarations: Consecutive
-#AlignEscapedNewlines: Left
-AlignOperands:   AlignAfterOperator
-AlignTrailingComments: false
-#AllowAllArgumentsOnNextLine: true
-#AllowAllParametersOfDeclarationOnNextLine: true
-#AllowShortEnumsOnASingleLine: true
-#AllowShortBlocksOnASingleLine: Never
-AllowShortCaseLabelsOnASingleLine: true  # false
-#AllowShortFunctionsOnASingleLine: All
-#AllowShortLambdasOnASingleLine: All
-#AllowShortIfStatementsOnASingleLine: WithoutElse
-#AllowShortLoopsOnASingleLine: true
-#AlwaysBreakAfterDefinitionReturnType: None
-#AlwaysBreakAfterReturnType: None
-#AlwaysBreakBeforeMultilineStrings: true
-AlwaysBreakTemplateDeclarations: No  # Yes
-#AttributeMacros:
-#  - __capability
-#BinPackArguments: true
-#BinPackParameters: true
-#BraceWrapping:
-#  AfterCaseLabel:  false
-#  AfterClass:      false
-#  AfterControlStatement: Never
-#  AfterEnum:       false
-#  AfterFunction:   false
-#  AfterNamespace:  false
-#  AfterObjCDeclaration: false
-#  AfterStruct:     false
-#  AfterUnion:      false
-#  AfterExternBlock: false
-#  BeforeCatch:     false
-#  BeforeElse:      false
-#  BeforeLambdaBody: false
-#  BeforeWhile:     false
-#  IndentBraces:    false
-#  SplitEmptyFunction: true
-#  SplitEmptyRecord: true
-#  SplitEmptyNamespace: true
-#BreakBeforeBinaryOperators: None
-#BreakBeforeConceptDeclarations: true
-#BreakBeforeBraces: Attach
-#BreakBeforeInheritanceComma: false
+AlignConsecutiveAssignments:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: true
+AlignConsecutiveDeclarations:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: false
+AlignConsecutiveMacros: None
+AlignOperands: AlignAfterOperator
+AllowAllArgumentsOnNextLine: false
+AllowShortLambdasOnASingleLine: All
+AllowShortCaseLabelsOnASingleLine: true
+AlwaysBreakTemplateDeclarations: No
+# BreakConstructorInitializers: BeforeComma
 BreakInheritanceList: BeforeComma
-#BreakBeforeTernaryOperators: true
-#BreakConstructorInitializersBeforeComma: false
-#BreakConstructorInitializers: BeforeColon
-#BreakAfterJavaFieldAnnotations: false
-#BreakStringLiterals: true
-ColumnLimit:     0
-#CommentPragmas:  '^ IWYU pragma:'
-QualifierAlignment: Right  # Leave
-#CompactNamespaces: false
+BraceWrapping:
+  BeforeLambdaBody: false
+ColumnLimit: 0
+QualifierAlignment: Right
 ConstructorInitializerIndentWidth: 0
-ContinuationIndentWidth: 99
-#Cpp11BracedListStyle: true
-#DeriveLineEnding: true
-#DerivePointerAlignment: true
-#DisableFormat:   false
-#EmptyLineAfterAccessModifier: Never
-#EmptyLineBeforeAccessModifier: LogicalBlock
-#ExperimentalAutoDetectBinPacking: false
-#PackConstructorInitializers: NextLine
-#BasedOnStyle:    ''
-#ConstructorInitializerAllOnOneLineOrOnePerLine: false
-#AllowAllConstructorInitializersOnNextLine: true
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
 FixNamespaceComments: true
-#ForEachMacros:
-#  - foreach
-#  - Q_FOREACH
-#  - BOOST_FOREACH
-#IfMacros:
-#  - KJ_IF_MAYBE
-#IncludeBlocks:   Regroup
-#IncludeCategories:
-#  - Regex:           '^<ext/.*\.h>'
-#    Priority:        2
-#    SortPriority:    0
-#    CaseSensitive:   false
-#  - Regex:           '^<.*\.h>'
-#    Priority:        1
-#    SortPriority:    0
-#    CaseSensitive:   false
-#  - Regex:           '^<.*'
-#    Priority:        2
-#    SortPriority:    0
-#    CaseSensitive:   false
-#  - Regex:           '.*'
-#    Priority:        3
-#    SortPriority:    0
-#    CaseSensitive:   false
-#IncludeIsMainRegex: '([-_](test|unittest))?$'
-#IncludeIsMainSourceRegex: ''
-#IndentAccessModifiers: true  # false
-AccessModifierOffset: -98  # 2
-#IndentCaseLabels: true
-#IndentCaseBlocks: false
-#IndentGotoLabels: true
-#IndentPPDirectives: None
-#IndentExternBlock: AfterExternBlock
-#IndentRequires:  false
-IndentWidth:     99
-#IndentWrappedFunctionNames: false
-#InsertTrailingCommas: None
-#JavaScriptQuotes: Leave
-#JavaScriptWrapImports: true
-#KeepEmptyLinesAtTheStartOfBlocks: false
-#LambdaBodyIndentation: Signature
-#MacroBlockBegin: ''
-#MacroBlockEnd:   ''
-#MaxEmptyLinesToKeep: 1
-#NamespaceIndentation: None
-#ObjCBinPackProtocolList: Never
-#ObjCBlockIndentWidth: 2
-#ObjCBreakBeforeNestedBlockParam: true
-#ObjCSpaceAfterProperty: false
-#ObjCSpaceBeforeProtocolList: true
-#PenaltyBreakAssignment: 2
-#PenaltyBreakBeforeFirstCallParameter: 1
-#PenaltyBreakComment: 300
-#PenaltyBreakFirstLessLess: 120
-#PenaltyBreakOpenParenthesis: 0
-#PenaltyBreakString: 1000
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex: <(boost\/multi)\/
+    Priority: 1
+  - Regex: <([A-Za-z0-9\Q/-_\E])+>
+    Priority: 5
+  - Regex: <(boost)\/
+    Priority: 4
+  - Regex: <([A-Za-z0-9.\Q/-_\E])+>
+    Priority: 3
+  - Regex: '"([A-Za-z0-9.\Q/-_\E])+"'
+    Priority: 2
+# IndentPPDirectives: Leave
+# IndentPPDirectives: None
+IndentWidth: 4
+# LambdaBodyIndentation: Signature
+# OneLineFormatOffRegex: "CLANG_FORMAT_OFF"
+# PackConstructorInitializers: CurrentLine
 PenaltyBreakTemplateDeclaration: 10
-#PenaltyExcessCharacter: 1000000
-#PenaltyReturnTypeOnItsOwnLine: 200
-#PenaltyIndentedWhitespace: 0
 PointerAlignment: Left
-#PPIndentWidth:   -1
-#RawStringFormats:
-#  - Language:        Cpp
-#    Delimiters:
-#      - cc
-#      - CC
-#      - cpp
-#      - Cpp
-#      - CPP
-#      - 'c++'
-#      - 'C++'
-#    CanonicalDelimiter: ''
-#    BasedOnStyle:    google
-#  - Language:        TextProto
-#    Delimiters:
-#      - pb
-#      - PB
-#      - proto
-#      - PROTO
-#    EnclosingFunctions:
-#      - EqualsProto
-#      - EquivToProto
-#      - PARSE_PARTIAL_TEXT_PROTO
-#      - PARSE_TEST_PROTO
-#      - PARSE_TEXT_PROTO
-#      - ParseTextOrDie
-#      - ParseTextProtoOrDie
-#      - ParseTestProto
-#      - ParsePartialTestProto
-#    CanonicalDelimiter: pb
-#    BasedOnStyle:    google
-#ReferenceAlignment: Pointer
-#ReflowComments:  true
-#RemoveBracesLLVM: false
-#SeparateDefinitionBlocks: Leave
-#ShortNamespaceLines: 1
-#SortIncludes:    CaseSensitive
-#SortJavaStaticImport: Before
-#SortUsingDeclarations: true
-#SpaceAfterCStyleCast: false
-#SpaceAfterLogicalNot: false
-SpaceAfterTemplateKeyword: false # true
-#SpaceBeforeAssignmentOperators: true
-#SpaceBeforeCaseColon: false
-#SpaceBeforeCpp11BracedList: false
-#SpaceBeforeCtorInitializerColon: true
-#SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: Custom  # ControlStatements
+ReferenceAlignment: Left
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: Custom
 SpaceBeforeParensOptions:
-  AfterControlStatements: false  # true
-#  AfterForeachMacros: true
-#  AfterFunctionDefinitionName: false
-#  AfterFunctionDeclarationName: false
-#  AfterIfMacros:   true
-#  AfterOverloadedOperator: false
-#  BeforeNonEmptyParentheses: false
-#SpaceAroundPointerQualifiers: Default
-#SpaceBeforeRangeBasedForLoopColon: true
-#SpaceInEmptyBlock: false
-#SpaceInEmptyParentheses: false
+  AfterControlStatements: false
+  AfterForeachMacros: false
+  AfterFunctionDeclarationName: false
+  AfterFunctionDefinitionName: false
+  AfterIfMacros: false  # AfterNot: false
+  AfterOverloadedOperator: false  # AfterPlacementOperator: false
+  AfterRequiresInClause: false
+  AfterRequiresInExpression: false
+  BeforeNonEmptyParentheses: false
 SpacesBeforeTrailingComments: 2
-#SpacesInAngles:  Never
-#SpacesInConditionalStatement: false
-#SpacesInContainerLiterals: true
-#SpacesInCStyleCastParentheses: false
 SpacesInLineCommentPrefix:
-  Minimum:         1
-#  Maximum:         -1
-#SpacesInParentheses: false
-#SpacesInSquareBrackets: false
-#SpaceBeforeSquareBrackets: false
-#BitFieldColonSpacing: Both
-Standard:         c++17
-#StatementAttributeLikeMacros:
-#  - Q_EMIT
-#StatementMacros:
-#  - Q_UNUSED
-#  - QT_REQUIRE_VERSION
-TabWidth:        99
-#UseCRLF:         false
-UseTab:         ForContinuationAndIndentation  # Never
+  Minimum: 1
+Standard: c++17
+TabWidth: 4
+UseTab: ForContinuationAndIndentation
 WhitespaceSensitiveMacros:
-  - BOOST_REQUIRE
   - BOOST_TEST
-  - BOOST_TEST_REQUIRE
-#WhitespaceSensitiveMacros:
-#  - STRINGIZE
-#  - PP_STRINGIZE
-#  - BOOST_PP_STRINGIZE
-#  - NS_SWIFT_NAME
-#  - CF_SWIFT_NAME
-...