office-gobmx/include/comphelper/newarray.hxx
Stephan Bergmann 29bc12777c Let loplugin:nullptr look into template instantiations
It missed some occurrences of 0 when only looking into uninstantiated template
code, as Clang doesn't model them with an ImplicitCastExpr, even if the target
is known to be a (dependent) pointer type.

Looking into all template instantiations of course carries the risk that a given
use of 0 is meant to be interpreted as a pointer in some and as an integer in
other instantiations.  But the only case where that happened in the current code
base is RegistryValueList::getElement (include/registry/registry.hxx), where {}
is arguably a better choice anyway.  (And which would presumably also hold for
any future such cases.)

Change-Id: I708bcfc8bedc0a49c9282d7814eb325afa29905c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128462
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2022-01-15 15:58:07 +01:00

42 lines
1.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_COMPHELPER_NEWARRAY_HXX
#define INCLUDED_COMPHELPER_NEWARRAY_HXX
#include <limits>
#include <new>
#include <stddef.h>
namespace comphelper {
template<typename T> T *
newArray_null(size_t const n) noexcept
{
if ((::std::numeric_limits<size_t>::max() / sizeof(T)) <= n) {
return nullptr;
}
return new (::std::nothrow) T[n];
}
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_NEWARRAY_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */