deploy: 06a1bdf735

vendor/gopl.io/ch2/tempconv0/celsius.go

@@ -0,0 +1,27 @@
+// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+
+// See page 39.
+//!+
+
+// Package tempconv performs Celsius and Fahrenheit temperature computations.
+package tempconv
+
+import "fmt"
+
+type Celsius float64
+type Fahrenheit float64
+
+const (
+	AbsoluteZeroC Celsius = -273.15
+	FreezingC     Celsius = 0
+	BoilingC      Celsius = 100
+)
+
+func CToF(c Celsius) Fahrenheit { return Fahrenheit(c*9/5 + 32) }
+
+func FToC(f Fahrenheit) Celsius { return Celsius((f - 32) * 5 / 9) }
+
+//!-
+
+func (c Celsius) String() string { return fmt.Sprintf("%g°C", c) }