38 lines
873 B
Go
38 lines
873 B
Go
// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package main
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import (
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Println("Give me a year number")
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return
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}
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year, err := strconv.Atoi(os.Args[1])
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if err != nil {
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fmt.Printf("%q is not a valid year.\n", os.Args[1])
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return
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}
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if year%4 == 0 && (year%100 != 0 || year%400 == 0) {
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fmt.Printf("%d is a leap year.\n", year)
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} else {
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fmt.Printf("%d is not a leap year.\n", year)
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}
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}
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// Review the original source code here:
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// https://github.com/golang/go/blob/ad644d2e86bab85787879d41c2d2aebbd7c57db8/src/time/time.go#L1289
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