github.com/MangoDowner/go-gm@v0.0.0-20180818020936-8baa2bd4408c/misc/cgo/test/issue8428.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // This test fails on older versions of OS X because they use older buggy
     6  // versions of Clang that emit ambiguous DWARF info.  See issue 8611.
     7  // +build !darwin
     8  
     9  package cgotest
    10  
    11  // Issue 8428.  Cgo inconsistently translated zero size arrays.
    12  
    13  /*
    14  struct issue8428one {
    15  	char b;
    16  	char rest[];
    17  };
    18  
    19  struct issue8428two {
    20  	void *p;
    21  	char b;
    22  	char rest[0];
    23  	char pad;
    24  };
    25  
    26  struct issue8428three {
    27  	char w[1][2][3][0];
    28  	char x[2][3][0][1];
    29  	char y[3][0][1][2];
    30  	char z[0][1][2][3];
    31  };
    32  */
    33  import "C"
    34  
    35  import "unsafe"
    36  
    37  var _ = C.struct_issue8428one{
    38  	b: C.char(0),
    39  	// The trailing rest field is not available in cgo.
    40  	// See issue 11925.
    41  	// rest: [0]C.char{},
    42  }
    43  
    44  var _ = C.struct_issue8428two{
    45  	p:    unsafe.Pointer(nil),
    46  	b:    C.char(0),
    47  	rest: [0]C.char{},
    48  }
    49  
    50  var _ = C.struct_issue8428three{
    51  	w: [1][2][3][0]C.char{},
    52  	x: [2][3][0][1]C.char{},
    53  	y: [3][0][1][2]C.char{},
    54  	z: [0][1][2][3]C.char{},
    55  }