issue9604.go

     1  // run
     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  package main
     8  
     9  var x uint16 = 0xffff
    10  var y uint16 = 0xfffe
    11  var a uint16 = 0x7000
    12  var b uint16 = 0x9000
    13  
    14  func main() {
    15  	// Make sure we truncate to smaller-width types after evaluating expressions.
    16  	// This is a problem for arm where there is no 16-bit comparison op.
    17  	if ^x != 0 {
    18  		panic("^uint16(0xffff) != 0")
    19  	}
    20  	if ^y != 1 {
    21  		panic("^uint16(0xfffe) != 1")
    22  	}
    23  	if -x != 1 {
    24  		panic("-uint16(0xffff) != 1")
    25  	}
    26  	if a+b != 0 {
    27  		panic("0x7000+0x9000 != 0")
    28  	}
    29  }
    30
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