gopl.io/ch2/tempconv0/tempconv_test.go
Alan Donovan 4f0ceb5e5d Update to gobook@4fdc3c0a831c14c716c2c013e42268f6d21a9a13
Change-Id: I63623453205b84eba5680e27f68e81e99e7bbeb9
2015-12-07 12:23:42 -05:00

46 lines
928 B
Go

// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
package tempconv
import "fmt"
func Example_one() {
{
//!+arith
fmt.Printf("%g\n", BoilingC-FreezingC) // "100" °C
boilingF := CToF(BoilingC)
fmt.Printf("%g\n", boilingF-CToF(FreezingC)) // "180" °F
//!-arith
}
/*
//!+arith
fmt.Printf("%g\n", boilingF-FreezingC) // compile error: type mismatch
//!-arith
*/
// Output:
// 100
// 180
}
func Example_two() {
//!+printf
c := FToC(212.0)
fmt.Println(c.String()) // "100°C"
fmt.Printf("%v\n", c) // "100°C"; no need to call String explicitly
fmt.Printf("%s\n", c) // "100°C"
fmt.Println(c) // "100°C"
fmt.Printf("%g\n", c) // "100"; does not call String
fmt.Println(float64(c)) // "100"; does not call String
//!-printf
// Output:
// 100°C
// 100°C
// 100°C
// 100°C
// 100
// 100
}