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go/misc/cgo/testcdefs/cdefstest.go
Ian Lance Taylor 709096f185 misc/cgo/testcdefs: comment out test of packed structs
The [568]c compilers no longer support packed structs, so
using them with -cdefs no longer works.  Just commenting out
the test, rather than removing it, in case this needs to be
handled.  It may be that -cdefs can go away entirely in the
future, in which case so can this directory.

LGTM=mdempsky
R=rsc, mdempsky
CC=golang-codereviews
https://golang.org/cl/136030043
2014-08-31 22:59:43 -04:00

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1.6 KiB
Go

// Copyright 2013 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.
//
// +build ignore
package cgotest
/*
// This file tests a bug found in the cgo -cdefs tool that incorrectly
// translated Go pointer arrays generated by the cgo godefs tool back into C
// pointer arrays.
//
// The comments below show how the type is translated from gcc-style C into Go
// and back into C for both the buggy version and the correct version
struct cdefsTest {
// This was already being handled correctly
// Correct: -> Array [20]int8 -> int8 array[20]
char array1[20];
// Buggy: -> Array [20][20]int8 -> [20]int8 array[20]
// Correct: -> Array [20][20]int8 -> int8 array[20][20]
char array2[20][20];
// Buggy: -> Array [20]*int8 -> *int8 array[20]
// Correct: -> Array [20]*int8 -> int8 *array[20]
char *array3[20];
// Buggy: -> Array [20][20]*int8 -> [20]*int8 array[20]
// Correct: -> Array [20]**int8 -> int8 *array[20][20]
char *array4[20][20];
// Buggy: -> Array [20][20]**int8 -> [20]**int8 array[20]
// Correct: -> Array [20][20]**int8 -> int8 **array[20][20]
char **array5[20][20];
};
// Test that packed structures can be translated to C correctly too.
// See issue 8477.
struct packedTest {
char first;
int second;
long long third;
} __attribute__((packed));
// Test that conflicting type definitions don't cause problems with cgo.
// See issue 8477.
typedef struct timespec {
double bogus;
} pid_t;
*/
import "C"
type CdefsTest C.struct_cdefsTest
//type PackedTest C.struct_packedTest