Grow stack (#40)

Stack allocator capacity is now increased each time step based on the
maximum allocation.
Updated clang format
Allocator is now internal
Added create/destroy benchmark

.clang-format

@@ -1,214 +1,15 @@
 # Reference: https://clang.llvm.org/docs/ClangFormatStyleOptions.html
+# /c/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/Llvm/bin
+# default values:
+# https://github.com/llvm/llvm-project/blob/main/clang/lib/Format/Format.cpp
 ---
 Language: Cpp
 BasedOnStyle: Microsoft
-# AccessModifierOffset: -4
-# AlignAfterOpenBracket: Align
-# AlignArrayOfStructures: None
-# AlignConsecutiveAssignments:
-#   Enabled:         false
-#   AcrossEmptyLines: false
-#   AcrossComments:  false
-#   AlignCompound:   false
-#   PadOperators:    true
-# AlignConsecutiveBitFields:
-#   Enabled:         false
-#   AcrossEmptyLines: false
-#   AcrossComments:  false
-#   AlignCompound:   false
-#   PadOperators:    false
-# AlignConsecutiveDeclarations:
-#   Enabled:         false
-#   AcrossEmptyLines: false
-#   AcrossComments:  false
-#   AlignCompound:   false
-#   PadOperators:    false
-# AlignConsecutiveMacros:
-#   Enabled:         false
-#   AcrossEmptyLines: false
-#   AcrossComments:  false
-#   AlignCompound:   false
-#   PadOperators:    false
-# AlignEscapedNewlines: Right
-# AlignOperands:   Align
-# AlignTrailingComments: true
-# AllowAllArgumentsOnNextLine: true
-# AllowAllParametersOfDeclarationOnNextLine: true
-# AllowShortEnumsOnASingleLine: false
-# AllowShortBlocksOnASingleLine: Never
-# AllowShortCaseLabelsOnASingleLine: false
-# AllowShortFunctionsOnASingleLine: None
-# AllowShortLambdasOnASingleLine: All
-# AllowShortIfStatementsOnASingleLine: Never
-# AllowShortLoopsOnASingleLine: false
-# AlwaysBreakAfterDefinitionReturnType: None
-# AlwaysBreakAfterReturnType: None
-# AlwaysBreakBeforeMultilineStrings: false
-# AlwaysBreakTemplateDeclarations: MultiLine
-# AttributeMacros:
-#   - __capability
-# BinPackArguments: true
-# BinPackParameters: true
-# BraceWrapping:
-#   AfterCaseLabel:  true
-#   AfterClass:      true
-#   AfterControlStatement: Always
-#   AfterEnum:       true #
-#   AfterFunction:   true
-#   AfterNamespace:  true
-#   AfterObjCDeclaration: true
-#   AfterStruct:     true
-#   AfterUnion:      true
-#   AfterExternBlock: false #
-#   BeforeCatch:     true
-#   BeforeElse:      true
-#   BeforeLambdaBody: false
-#   BeforeWhile:     false
-#   IndentBraces:    false
-#   SplitEmptyFunction: true
-#   SplitEmptyRecord: true
-#   SplitEmptyNamespace: true
-# BreakBeforeBinaryOperators: None
-# BreakBeforeConceptDeclarations: Always
 BreakBeforeBraces: Allman 
-# BreakBeforeInheritanceComma: false
-# BreakInheritanceList: BeforeColon
-# BreakBeforeTernaryOperators: true
-# BreakConstructorInitializersBeforeComma: true
-# BreakConstructorInitializers: BeforeComma
-# BreakAfterJavaFieldAnnotations: false
-# BreakStringLiterals: true
 ColumnLimit: 140
-# CommentPragmas:  '^ IWYU pragma:'
-# QualifierAlignment: Leave
-# CompactNamespaces: false
-# ConstructorInitializerIndentWidth: 4
-# ContinuationIndentWidth: 4
-# Cpp11BracedListStyle: true
-# DeriveLineEnding: true
-# DerivePointerAlignment: false
-# DisableFormat:   false
-# EmptyLineAfterAccessModifier: Never
-# EmptyLineBeforeAccessModifier: LogicalBlock
-# ExperimentalAutoDetectBinPacking: false
-# PackConstructorInitializers: BinPack
-# ConstructorInitializerAllOnOneLineOrOnePerLine: false
-# AllowAllConstructorInitializersOnNextLine: true
-# FixNamespaceComments: true
-# ForEachMacros:
-#   - foreach
-#   - Q_FOREACH
-#   - BOOST_FOREACH
-# IfMacros:
-#   - KJ_IF_MAYBE
-# IncludeBlocks:   Preserve
-# IncludeCategories:
-#   - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
-#     Priority:        2
-#     SortPriority:    0
-#     CaseSensitive:   false
-#   - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
-#     Priority:        3
-#     SortPriority:    0
-#     CaseSensitive:   false
-#   - Regex:           '.*'
-#     Priority:        1
-#     SortPriority:    0
-#     CaseSensitive:   false
-# IncludeIsMainRegex: '(Test)?$'
-# IncludeIsMainSourceRegex: ''
-# IndentAccessModifiers: false
-# IndentCaseLabels: true
-# IndentCaseBlocks: false
-# IndentGotoLabels: true
-# IndentPPDirectives: None
-# IndentExternBlock: NoIndent
-# IndentRequiresClause: true
-# IndentWidth:     4
-# IndentWrappedFunctionNames: false
-# InsertBraces:    false
-# InsertTrailingCommas: None
-# JavaScriptQuotes: Leave
-# JavaScriptWrapImports: true
-# KeepEmptyLinesAtTheStartOfBlocks: true
-# LambdaBodyIndentation: Signature
-# MacroBlockBegin: ''
-# MacroBlockEnd:   ''
-# MaxEmptyLinesToKeep: 1
-# NamespaceIndentation: None
-# ObjCBinPackProtocolList: Auto
-# ObjCBlockIndentWidth: 2
-# ObjCBreakBeforeNestedBlockParam: true
-# ObjCSpaceAfterProperty: false
-# ObjCSpaceBeforeProtocolList: true
-# PenaltyBreakAssignment: 2
-# PenaltyBreakBeforeFirstCallParameter: 19
-# PenaltyBreakComment: 300
-# PenaltyBreakFirstLessLess: 120
-# PenaltyBreakOpenParenthesis: 0
-# PenaltyBreakString: 1000
-# PenaltyBreakTemplateDeclaration: 10
-# PenaltyExcessCharacter: 1000000
-# PenaltyReturnTypeOnItsOwnLine: 1000
-# PenaltyIndentedWhitespace: 0
 PointerAlignment: Left
-# PPIndentWidth:   -1
-# ReferenceAlignment: Pointer
-# ReflowComments:  true
-# RemoveBracesLLVM: false
-# RequiresClausePosition: OwnLine
-# SeparateDefinitionBlocks: Leave
-# ShortNamespaceLines: 1
-# SortIncludes:    CaseSensitive
-# SortJavaStaticImport: Before
-# SortUsingDeclarations: true
-# SpaceAfterCStyleCast: false
-# SpaceAfterLogicalNot: false
-# SpaceAfterTemplateKeyword: true
-# SpaceBeforeAssignmentOperators: true
-# SpaceBeforeCaseColon: false
-# SpaceBeforeCpp11BracedList: false
-# SpaceBeforeCtorInitializerColon: true
-# SpaceBeforeInheritanceColon: true
-# SpaceBeforeParens: ControlStatements
-# SpaceBeforeParensOptions:
-#   AfterControlStatements: true
-#   AfterForeachMacros: true
-#   AfterFunctionDefinitionName: false
-#   AfterFunctionDeclarationName: false
-#   AfterIfMacros:   true
-#   AfterOverloadedOperator: false
-#   AfterRequiresInClause: false
-#   AfterRequiresInExpression: false
-#   BeforeNonEmptyParentheses: false
-# SpaceAroundPointerQualifiers: Default
-# SpaceBeforeRangeBasedForLoopColon: true
-# SpaceInEmptyBlock: false
-# SpaceInEmptyParentheses: false
-# SpacesBeforeTrailingComments: 1
-# SpacesInAngles:  Never
-# SpacesInConditionalStatement: false
-# SpacesInContainerLiterals: true
-# SpacesInCStyleCastParentheses: false
-# SpacesInLineCommentPrefix:
-#   Minimum:         1
-#   Maximum:         -1
-# SpacesInParentheses: false
-# SpacesInSquareBrackets: false
-# SpaceBeforeSquareBrackets: false
-# BitFieldColonSpacing: Both
-# Standard:        Latest
-# StatementAttributeLikeMacros:
-#   - Q_EMIT
-# StatementMacros:
-#   - Q_UNUSED
-#   - QT_REQUIRE_VERSION
-# TabWidth:        4
-# UseCRLF:         false
 UseTab: Always
-# WhitespaceSensitiveMacros:
-#   - STRINGIZE
-#   - PP_STRINGIZE
-#   - BOOST_PP_STRINGIZE
-#   - NS_SWIFT_NAME
-#   - CF_SWIFT_NAME
+# when VS updates clang-format to v16
+# InsertNewlineAtEOF: true
+
+IncludeBlocks: Regroup

include/box2d/api.h

@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 #define BOX2D_CPP extern "C"
 #else
@@ -21,3 +23,21 @@
 #else
 #define BOX2D_API BOX2D_CPP
 #endif
+
+typedef void* b2AllocFcn(int32_t size);
+typedef void b2FreeFcn(void* mem);
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+	/// Default allocation functions
+	void b2SetAllocator(b2AllocFcn* allocFcn, b2FreeFcn* freeFcn);
+
+	/// Total bytes allocated by Box2D
+	int32_t b2GetByteCount();
+
+#ifdef __cplusplus
+}
+#endif