/usr/include/wvstreams/xplc/delete.h is in libwvstreams-dev 4.6.1-12~deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* XPLC - Cross-Platform Lightweight Components
* Copyright (C) 2004, Net Integration Technologies, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU Lesser General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Lesser
* General Public License.
*/
#ifndef __XPLC_DELETE_H__
#define __XPLC_DELETE_H__
#if defined(__GNUC__) && __GNUC__ > 3
# pragma GCC system_header
#endif
/** \file
*
* Include this file right after IObject.h (or instead of) to detect
* accidental uses of "delete" on an %XPLC interface. Use "xplcdelete"
* instead of "delete" when you know what you are doing.
*/
#include <new>
#include <memory>
#ifdef __XPLC_IOBJECT_H__
#error "<xplc/delete.h> has to be included before <xplc/IObject.h>."
#endif
#include <xplc/IObject.h>
/**
* \defgroup DeleteDetector This is the "delete detector".
*/
/// \ingroup DeleteDetector
class CheckIObject {};
class CheckIObjectOk {};
/// \ingroup DeleteDetector
class CheckIObjectOkVector {};
template<class T>
class ConversionIObject
{
public:
//@{
typedef char Yes;
/// \ingroup DeleteDetector
struct No { char dummy[2]; };
static T* from;
static Yes test(const IObject*);
static No test(...);
//@}
};
template<bool>
struct XPLC_CTAssert;
template<>
/// \ingroup DeleteDetector
struct XPLC_CTAssert<true> {};
template<class T>
inline void operator&&(CheckIObject, const T* obj) {
static_cast<void>(sizeof(XPLC_CTAssert<(sizeof(ConversionIObject<T>::test(ConversionIObject<T>::from)) != sizeof(typename ConversionIObject<T>::Yes))>));
delete obj;
}
template<class T>
inline void operator&&(CheckIObjectOk, const T* obj) {
delete obj;
}
template<class T>
inline void operator&&(CheckIObjectOkVector, const T* obj) {
delete[] obj;
}
/**
* Undefine xplcdelete. <xplc/utils.h> defines xplcdelete, we should
* undo this, in case it has been included before.
*/
#undef xplcdelete
/**
* Macro used to indicate a valid use of the delete keyword with an
* XPLC interface. In some cases, you really need to use delete on an
* object that derives from IObject. In those cases, use "xplcdelete"
* instead of "delete".
*/
#define xplcdelete CheckIObjectOk() &&
/**
* Overriding the delete keyword. This replaces the delete keyword
* with an invocation of the operator&& using a specific marker class
* as the left operand, allowing it to be templated on the right
* operand.
*/
#define delete CheckIObject() &&
/**
* Remplacement for delete[]. Because we cannot capture usage of
* delete[] using macros, we have to add a replacement for it,
* unfortunately.
*/
#define deletev CheckIObjectOkVector() &&
#endif /* __XPLC_DELETE_H__ */
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