Add number parsing

numberparsing/numberparsing.go

@@ -0,0 +1,26 @@
+package numberparsing
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func NumberParsing() {
+	var expected int32 = (1 << 31) - 1
+	parsed, _ := strconv.ParseInt(fmt.Sprint(expected), 10, 32)
+	if expected != int32(parsed) {
+		panic(fmt.Sprintf("Expected %d but got %d parsed=%d", expected, int32(parsed), parsed))
+	}
+
+	num, _ := strconv.ParseInt("0xff", 0, 64)
+	fmt.Println("Hex num =>", num)
+
+	num, _ = strconv.ParseInt("0777", 0, 64)
+	fmt.Println("Octal num =>", num)
+
+	num, _ = strconv.ParseInt("0b11", 0, 64)
+	fmt.Println("Binary num =>", num)
+
+	fNum, _ := strconv.ParseFloat("3.1415", 64)
+	fmt.Println("Float num =>", fNum)
+}