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ceph-csi/vendor/gopkg.in/inf.v0/example_test.go

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2018-12-19 14:29:25 +00:00
package inf_test
import (
"fmt"
"log"
)
import "gopkg.in/inf.v0"
func ExampleDec_SetString() {
d := new(inf.Dec)
d.SetString("012345.67890") // decimal; leading 0 ignored; trailing 0 kept
fmt.Println(d)
// Output: 12345.67890
}
func ExampleDec_Scan() {
// The Scan function is rarely used directly;
// the fmt package recognizes it as an implementation of fmt.Scanner.
d := new(inf.Dec)
_, err := fmt.Sscan("184467440.73709551617", d)
if err != nil {
log.Println("error scanning value:", err)
} else {
fmt.Println(d)
}
// Output: 184467440.73709551617
}
func ExampleDec_QuoRound_scale2RoundDown() {
// 10 / 3 is an infinite decimal; it has no exact Dec representation
x, y := inf.NewDec(10, 0), inf.NewDec(3, 0)
// use 2 digits beyond the decimal point, round towards 0
z := new(inf.Dec).QuoRound(x, y, 2, inf.RoundDown)
fmt.Println(z)
// Output: 3.33
}
func ExampleDec_QuoRound_scale2RoundCeil() {
// -42 / 400 is an finite decimal with 3 digits beyond the decimal point
x, y := inf.NewDec(-42, 0), inf.NewDec(400, 0)
// use 2 digits beyond decimal point, round towards positive infinity
z := new(inf.Dec).QuoRound(x, y, 2, inf.RoundCeil)
fmt.Println(z)
// Output: -0.10
}
func ExampleDec_QuoExact_ok() {
// 1 / 25 is a finite decimal; it has exact Dec representation
x, y := inf.NewDec(1, 0), inf.NewDec(25, 0)
z := new(inf.Dec).QuoExact(x, y)
fmt.Println(z)
// Output: 0.04
}
func ExampleDec_QuoExact_fail() {
// 1 / 3 is an infinite decimal; it has no exact Dec representation
x, y := inf.NewDec(1, 0), inf.NewDec(3, 0)
z := new(inf.Dec).QuoExact(x, y)
fmt.Println(z)
// Output: <nil>
}