diff options
Diffstat (limited to 'src/math/big/example_test.go')
-rw-r--r-- | src/math/big/example_test.go | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/math/big/example_test.go b/src/math/big/example_test.go new file mode 100644 index 000000000..078be47f9 --- /dev/null +++ b/src/math/big/example_test.go @@ -0,0 +1,51 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package big_test + +import ( + "fmt" + "log" + "math/big" +) + +func ExampleRat_SetString() { + r := new(big.Rat) + r.SetString("355/113") + fmt.Println(r.FloatString(3)) + // Output: 3.142 +} + +func ExampleInt_SetString() { + i := new(big.Int) + i.SetString("644", 8) // octal + fmt.Println(i) + // Output: 420 +} + +func ExampleRat_Scan() { + // The Scan function is rarely used directly; + // the fmt package recognizes it as an implementation of fmt.Scanner. + r := new(big.Rat) + _, err := fmt.Sscan("1.5000", r) + if err != nil { + log.Println("error scanning value:", err) + } else { + fmt.Println(r) + } + // Output: 3/2 +} + +func ExampleInt_Scan() { + // The Scan function is rarely used directly; + // the fmt package recognizes it as an implementation of fmt.Scanner. + i := new(big.Int) + _, err := fmt.Sscan("18446744073709551617", i) + if err != nil { + log.Println("error scanning value:", err) + } else { + fmt.Println(i) + } + // Output: 18446744073709551617 +} |