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master
test/fixedbugs/issue9604.go
29 строк
631 B
Keith Randall
cmd/5g: make sure we normalize after unary ops on small types
16 янв 2015, 02:50
16 янв 2015, 02:50
daa64dd
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// run // Copyright 2015 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 main var x uint16 = 0xffff var y uint16 = 0xfffe var a uint16 = 0x7000 var b uint16 = 0x9000 func main() { // Make sure we truncate to smaller-width types after evaluating expressions. // This is a problem for arm where there is no 16-bit comparison op. if ^x != 0 { panic("^uint16(0xffff) != 0") } if ^y != 1 { panic("^uint16(0xfffe) != 1") } if -x != 1 { panic("-uint16(0xffff) != 1") } if a+b != 0 { panic("0x7000+0x9000 != 0") } }