Adding math functions

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

2 files changed, 31 insertions, 0 deletions

diff --git a/math/math.go b/math/math.go
new file mode 100644
index 00000000..9eaef051
--- /dev/null
+++ b/math/math.go
@@ -0,0 +1,19 @@
+package math
+
+// AddInt -
+func AddInt(n ...int64) int64 {
+	x := int64(0)
+	for _, i := range n {
+		x += i
+	}
+	return x
+}
+
+// MulInt -
+func MulInt(n ...int64) int64 {
+	var x int64 = 1
+	for _, i := range n {
+		x *= i
+	}
+	return x
+}
diff --git a/math/math_test.go b/math/math_test.go
new file mode 100644
index 00000000..9c4da13a
--- /dev/null
+++ b/math/math_test.go
@@ -0,0 +1,12 @@
+package math
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMath(t *testing.T) {
+	assert.Equal(t, int64(10), AddInt(1, 2, 3, 4))
+	assert.Equal(t, int64(12), MulInt(3, 4, 1))
+}