rename Calculator.buffer to Calculator.buf

1 files changed, 5 insertions, 5 deletions

diff --git a/calculator.go b/calculator.go
index 30cc7ec..08193b4 100644
--- a/calculator.go
+++ b/calculator.go
@@ -5,8 +5,8 @@ import "strconv"
 type Stack []float64
 
 type Calculator struct {
-	stack  Stack
-	buffer string
+	stack Stack
+	buf   string
 }
 
 // add performs addition when the user inputs the '+' operator.
@@ -14,13 +14,13 @@ func (c *Calculator) add() {
 	if len(c.stack) < 1 {
 		return
 	}
-	if con := parseConstant(c.buffer); con != nil {
+	if con := parseConstant(c.buf); con != nil {
 		c.stack[len(c.stack)-1] += *con
-	} else if f, err := strconv.ParseFloat(c.buffer, 64); err == nil {
+	} else if f, err := strconv.ParseFloat(c.buf, 64); err == nil {
 		c.stack[len(c.stack)-1] += f
 	} else if len(c.stack) > 1 {
 		c.stack[len(c.stack)-2] += c.stack[len(c.stack)-1]
 		c.stack = c.stack[:len(c.stack)-1]
 	}
-	c.buffer = ""
+	c.buf = ""
 }