1 // errorcheck 2 3 // Copyright 2015 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Expects to see error messages on 'p' exponents. 8 9 package main 10 11 import "fmt" 12 13 const ( 14 x1 = 1.1 // float 15 x2 = 1e10 // float 16 x3 = 0x1e10 // integer (e is a hex digit) 17 ) 18 19 // 'p' exponents are invalid - the 'p' is not considered 20 // part of a floating-point number, but introduces a new 21 // (unexpected) name. 22 // 23 // Error recovery is not ideal and we use a new declaration 24 // each time for the parser to recover. 25 26 const x4 = 0x1p10 // ERROR "unexpected p10" 27 const x5 = 1p10 // ERROR "unexpected p10" 28 const x6 = 0p0 // ERROR "unexpected p0" 29 30 func main() { 31 fmt.Printf("%g %T\n", x1, x1) 32 fmt.Printf("%g %T\n", x2, x2) 33 fmt.Printf("%g %T\n", x3, x3) 34 fmt.Printf("%g %T\n", x4, x4) 35 fmt.Printf("%g %T\n", x5, x5) 36 fmt.Printf("%g %T\n", x6, x6) 37 } 38
