github.com/razvanm/vanadium-go-1.3@v0.0.0-20160721203343-4a65068e5915/misc/cgo/testcdefs/cdefstest.go (about)

     1  // Copyright 2013 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  // +build ignore
     6  
     7  package cgotest
     8  
     9  /*
    10  // This file tests a bug found in the cgo -cdefs tool that incorrectly
    11  // translated Go pointer arrays generated by the cgo godefs tool back into C
    12  // pointer arrays.
    13  //
    14  // The comments below show how the type is translated from gcc-style C into Go
    15  // and back into C for both the buggy version and the correct version
    16  
    17  struct cdefsTest {
    18  	// This was already being handled correctly
    19  	// Correct: -> Array [20]int8 -> int8 array[20]
    20  	char array1[20];
    21  
    22  	// Buggy:   -> Array [20][20]int8 -> [20]int8 array[20]
    23  	// Correct: -> Array [20][20]int8 -> int8 array[20][20]
    24  	char array2[20][20];
    25  
    26  	// Buggy:   -> Array [20]*int8 -> *int8 array[20]
    27  	// Correct: -> Array [20]*int8 -> int8 *array[20]
    28  	char *array3[20];
    29  
    30  	// Buggy:   -> Array [20][20]*int8 -> [20]*int8 array[20]
    31  	// Correct: -> Array [20]**int8 -> int8 *array[20][20]
    32  	char *array4[20][20];
    33  
    34  	// Buggy:   -> Array [20][20]**int8 -> [20]**int8 array[20]
    35  	// Correct: -> Array [20][20]**int8 -> int8 **array[20][20]
    36  	char **array5[20][20];
    37  };
    38  
    39  // Test that packed structures can be translated to C correctly too.
    40  // See issue 8477.
    41  
    42  struct packedTest {
    43  	char first;
    44  	int second;
    45  	long long third;
    46  } __attribute__((packed));
    47  
    48  // Test that conflicting type definitions don't cause problems with cgo.
    49  // See issue 8477.
    50  
    51  typedef struct timespec {
    52  	double bogus;
    53  } pid_t;
    54  
    55  */
    56  import "C"
    57  
    58  type CdefsTest C.struct_cdefsTest
    59  
    60  //type PackedTest C.struct_packedTest