new file: linear/circularBuffer.go

new file:   tests/circularBuffer_test.go

linear/circularBuffer.go

@@ -0,0 +1,32 @@
+package linear
+
+type baseTypes interface {
+	int | int8 | int16 | int32 | int64 |
+		uint | uint8 | uint16 | uint32 | uint64 |
+		float32 | float64 | string | bool
+}
+
+// CircularBuffer -> Circular Buffer struct only takes baseTypes
+type CircularBuffer[T baseTypes] struct {
+	array [10]T
+	cHead int
+	cTail int
+	size  int
+}
+
+// Add() -> adds values wrapping around to overwrite oldest
+func (cb *CircularBuffer[T]) Add(val T) {
+	cb.array[cb.cTail] = val
+
+	cb.cTail = (cb.cTail + 1) % len(cb.array) // wrap around
+	if cb.size < len(cb.array) {
+		cb.size++
+	} else {
+		cb.cHead = (cb.cHead + 1) % len(cb.array) // overwrite oldest
+	}
+}
+
+// Data() -> returns the array in CircularBuffer
+func (cb CircularBuffer[T]) Data() [10]T {
+	return cb.array
+}