Reformat and macro aliasing

.clang-format

@@ -0,0 +1,245 @@
+---
+Language:        Cpp
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignArrayOfStructures: None
+AlignConsecutiveAssignments:
+  Enabled:         false
+  AcrossEmptyLines: false
+  AcrossComments:  false
+  AlignCompound:   false
+  AlignFunctionPointers: false
+  PadOperators:    true
+AlignConsecutiveBitFields:
+  Enabled:         false
+  AcrossEmptyLines: false
+  AcrossComments:  false
+  AlignCompound:   false
+  AlignFunctionPointers: false
+  PadOperators:    false
+AlignConsecutiveDeclarations:
+  Enabled:         true 
+  AcrossEmptyLines: false
+  AcrossComments:  false
+  AlignCompound:   false
+  AlignFunctionPointers: false
+  PadOperators:    false
+AlignConsecutiveMacros:
+  Enabled:         true
+  AcrossEmptyLines: false
+  AcrossComments:  false
+  AlignCompound:   false
+  AlignFunctionPointers: false
+  PadOperators:    false
+AlignConsecutiveShortCaseStatements:
+  Enabled:         false
+  AcrossEmptyLines: false
+  AcrossComments:  false
+  AlignCaseColons: false
+AlignEscapedNewlines: Right
+AlignOperands:   Align
+AlignTrailingComments:
+  Kind:            Always
+  OverEmptyLines:  0
+AllowAllArgumentsOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowBreakBeforeNoexceptSpecifier: Never
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortCompoundRequirementOnASingleLine: true
+AllowShortEnumsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: All
+AlwaysBreakAfterReturnType: AllDefinitions
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+AttributeMacros:
+  - __capability
+BinPackArguments: true
+BinPackParameters: true
+BitFieldColonSpacing: Both
+BraceWrapping:
+  AfterCaseLabel:  true
+  AfterClass:      true
+  AfterControlStatement: false
+  AfterEnum:       true
+  AfterExternBlock: true
+  AfterFunction:   true
+  AfterNamespace:  true
+  AfterObjCDeclaration: true
+  AfterStruct:     true
+  AfterUnion:      true
+  BeforeCatch:     true
+  BeforeElse:      true
+  BeforeLambdaBody: false
+  BeforeWhile:     true
+  IndentBraces:    true
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakAdjacentStringLiterals: true
+BreakAfterAttributes: Leave
+BreakAfterJavaFieldAnnotations: false
+BreakArrays:     true
+BreakBeforeBinaryOperators: All
+BreakBeforeConceptDeclarations: Always
+BreakBeforeBraces: Linux
+BreakBeforeInlineASMColon: OnlyMultiline
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+BreakInheritanceList: BeforeColon
+BreakStringLiterals: true
+ColumnLimit:     120
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: false
+DerivePointerAlignment: false
+DisableFormat:   false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: LogicalBlock
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: false
+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
+IndentCaseBlocks: false
+IndentCaseLabels: false
+IndentExternBlock: AfterExternBlock
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentRequiresClause: true
+IndentWidth:     2
+IndentWrappedFunctionNames: false
+InsertBraces:    false
+InsertNewlineAtEOF: true
+InsertTrailingCommas: None
+IntegerLiteralSeparator:
+  Binary:          0
+  BinaryMinDigits: 0
+  Decimal:         0
+  DecimalMinDigits: 0
+  Hex:             0
+  HexMinDigits:    0
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+KeepEmptyLinesAtEOF: false
+LambdaBodyIndentation: Signature
+LineEnding:      DeriveLF
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 2
+ObjCBreakBeforeNestedBlockParam: true
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PackConstructorInitializers: BinPack
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakOpenParenthesis: 0
+PenaltyBreakScopeResolution: 500
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyIndentedWhitespace: 0
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+PPIndentWidth:   -1
+QualifierAlignment: Leave
+ReferenceAlignment: Pointer
+ReflowComments:  true
+RemoveBracesLLVM: false
+RemoveParentheses: Leave
+RemoveSemicolon: false
+RequiresClausePosition: OwnLine
+RequiresExpressionIndentation: OuterScope
+SeparateDefinitionBlocks: Leave
+ShortNamespaceLines: 1
+SkipMacroDefinitionBody: false
+SortIncludes: false # Original: CaseInsensitive, breaks build
+SortJavaStaticImport: Before
+SortUsingDeclarations: LexicographicNumeric
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeJsonColon: false
+SpaceBeforeParens: false
+SpaceBeforeParensOptions:
+  AfterControlStatements: false
+  AfterForeachMacros: false
+  AfterFunctionDefinitionName: false
+  AfterFunctionDeclarationName: false
+  AfterIfMacros:   false
+  AfterOverloadedOperator: false
+  AfterPlacementOperator: false
+  AfterRequiresInClause: false
+  AfterRequiresInExpression: false
+  BeforeNonEmptyParentheses: false
+SpaceBeforeRangeBasedForLoopColon: false
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  Never
+SpacesInContainerLiterals: true
+SpacesInLineCommentPrefix:
+  Minimum:         1
+  Maximum:         -1
+SpacesInParens:  Never
+SpacesInParensOptions:
+  InCStyleCasts:   false
+  InConditionalStatements: false
+  InEmptyParentheses: false
+  Other:           false
+SpacesInSquareBrackets: false
+Standard:        c++03
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        8
+UseTab:          Never
+VerilogBreakBetweenInstancePorts: true
+WhitespaceSensitiveMacros:
+  - BOOST_PP_STRINGIZE
+  - CF_SWIFT_NAME
+  - NS_SWIFT_NAME
+  - PP_STRINGIZE
+  - STRINGIZE
+...
+

.gitignore

@@ -1,3 +1,4 @@
 *.o
 *.s
 build
+driver

driver.c

@@ -6,14 +6,16 @@
 #define rb_size_t size_t
 #include "ringbuf.h"
 
-int main(void) {
+int
+main(void)
+{
   struct RingBuf rb;
   rb_init(&rb, 10, malloc, sizeof(int));
 
-  int data[] = {1, 2, 3, 4, 5};
+  int data[] = { 1, 2, 3, 4, 5 };
   rb_push(&rb, (void **)data, 5, memcpy);
 
   // rb_destroy(&rb, free);
 
   return 0;
-}
+}

ringbuf.c

@@ -1,9 +1,17 @@
 /* SPDX-License-Identifier: MIT */
 
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
 #include "ringbuf.h"
 
-void rb_init(struct RingBuf *rb, rb_size_t capacity, void *(*alloc)(rb_size_t),
-             rb_size_t struct_size) {
+#define ALLOC_T  void *(*alloc)(rb_size_t)
+#define MEMCPY_T void *(*memcpy)(void *, const void *, rb_size_t)
+
+void
+rb_init(struct RingBuf *rb, rb_size_t capacity, ALLOC_T, rb_size_t struct_size)
+{
   rb->struct_size = struct_size;
   rb->capacity = capacity;
   rb->write_idx = 0;
@@ -11,21 +19,37 @@ void rb_init(struct RingBuf *rb, rb_size_t capacity, void *(*alloc)(rb_size_t),
   rb->buffer = alloc(capacity * struct_size); /* Calloc? */
 }
 
-void rb_destroy(struct RingBuf *rb, rb_size_t(free)(void *)) {
+void
+rb_destroy(struct RingBuf *rb, rb_size_t(free)(void *))
+{
   free(rb->buffer);
 }
 
-enum WriteResult rb_push(struct RingBuf *rb, void *data[], rb_size_t amount,
-                         void *(*memcpy)(void *, const void *, rb_size_t)) {
-  if (rb->write_idx + amount >= rb->capacity) {
+enum WriteResult
+rb_push(struct RingBuf *rb, void *data[], rb_size_t amount, MEMCPY_T)
+{
+  if(rb->write_idx + amount >= rb->capacity) {
     return CollisionError;
   }
 
-  for (rb_size_t i = 0; i < amount; i++) {
-    memcpy(rb->buffer + rb->write_idx * rb->struct_size, data[i],
-           rb->struct_size);
+  printf("write_idx: %d\n", rb->write_idx);
+  printf("amount: %d\n", amount);
+
+  for(rb_size_t i = 0; i < amount; i++) {
+    printf("memcpy: %d, write_idx: %d\n", i, rb->write_idx);
+    // write to the buffer
+    rb->buffer[rb->write_idx] = data[i];
+    // memcpy(rb->buffer + rb->write_idx * rb->struct_size, data[i], rb->struct_size);
+
     rb->write_idx = (rb->write_idx + 1) % rb->capacity;
   }
 
+  // Read it back to stdout
+  for(rb_size_t i = 0; i < amount; i++) {
+    printf("read_idx: %d\n", rb->read_idx);
+    printf("data: %d\n", *(int *)rb->buffer[rb->read_idx]);
+    rb->read_idx = (rb->read_idx + 1) % rb->capacity;
+  }
+
   return Ok;
-}
+}

ringbuf.h

@@ -14,18 +14,17 @@ struct RingBuf {
   rb_size_t capacity;    /* The physical capacity of the entire ringbuf */
   rb_size_t write_idx;   /* The write head */
   rb_size_t read_idx;    /* THe read head */
-  void **buffer;         /* The actual data */
+  void    **buffer;      /* The actual data */
 };
 
 enum WriteResult { CollisionError, Ok };
 
 /** Initialize the ring buffer */
-void rb_init(struct RingBuf *rb, rb_size_t capacity, void *(*alloc)(rb_size_t),
-             rb_size_t struct_size);
+void rb_init(struct RingBuf *rb, rb_size_t capacity, void *(*alloc)(rb_size_t), rb_size_t struct_size);
 
 /** Insert data to the ring buffer */
 enum WriteResult rb_push(struct RingBuf *rb, void *data[], rb_size_t amount,
                          void *(*memcpy)(void *, const void *, rb_size_t));
 
 /** Read data from the ring buffer */
-// void *rb_read(struct RingBuf *rb, int amount);
+// void *rb_read(struct RingBuf *rb, int amount);