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Source file test/char_lit1.go

Documentation: test

     1  // errorcheck
     2  
     3  // Copyright 2009 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  // Verify that illegal character literals are detected.
     8  // Does not compile.
     9  
    10  package main
    11  
    12  const (
    13  	// check that surrogate pair elements are invalid
    14  	// (d800-dbff, dc00-dfff).
    15  	_ = '\ud7ff' // ok
    16  	_ = '\ud800'  // ERROR "Unicode|unicode"
    17  	_ = "\U0000D999"  // ERROR "Unicode|unicode"
    18  	_ = '\udc01' // ERROR "Unicode|unicode"
    19  	_ = '\U0000dddd'  // ERROR "Unicode|unicode"
    20  	_ = '\udfff' // ERROR "Unicode|unicode"
    21  	_ = '\ue000' // ok
    22  	_ = '\U0010ffff'  // ok
    23  	_ = '\U00110000'  // ERROR "Unicode|unicode"
    24  	_ = "abc\U0010ffffdef"  // ok
    25  	_ = "abc\U00110000def"  // ERROR "Unicode|unicode"
    26  	_ = '\Uffffffff'  // ERROR "Unicode|unicode"
    27  )
    28  
    29  

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