CircularBuffer<type> class public functions

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CircularBuffer<type>(void);

Sets the allocation size to 0. The setSize function must be called before using.

CircularBuffer<type>(int maxElements);

Sets the allocation size of the buffer to maxElements and sets the read and write index to the same position in an uninitialized buffer.

CircularBuffer<type>(const CircularBuffer<type>& anotherBuffer);

Copyies the state of anotherBuffer as well as its contents.

~CircularBuffer();

Deletes the allocated space for the buffer.

int capacity(void) const;

Returns the number of items which can be added to the buffer. Returns a positive number if the buffer has empty locations available. Returns 0 if the buffer is 100% full. Returns a negative number if the buffer has overflowed.

type extract(void);

Reads the next value from the buffer and advances the read index.

int getCount(void) const;

Returns the number of elements between the write index and the read index.

int getSize(void) const;

Returns the allocated size of the buffer which is equal to the maximum number of values which can be stored in the buffer.

void insert(const type& aMessage);

Add an element to the circular buffer which will advance the write index by 1.

type& operator[](int index);

Accesor to an element relative to the currently written element.

type read(void);

An alias for the extract function.

void reset(void);

Throws out all previous data and sets the read/write/count values to an initial state. The allocation size must be valid before this function is called.

void setSize(int aSize);

Changes the allocation size of the buffer. All previous values in the buffer will be lost.

void write(const type& aMessage);

An alias for the insert function.