scummvm/common/memory.h
Colin Snover c867a1834f COMMON: Add standard count & count+copy array constructors
These are additions to match C++11 std::vector common init
patterns, to make Common::Array cover more common use cases where
C-style arrays are currently used (and should not be).
2017-09-30 11:17:53 +02:00

67 lines
2.0 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef COMMON_MEMORY_H
#define COMMON_MEMORY_H
#include "common/scummsys.h"
namespace Common {
/**
* Copies data from the range [first, last) to [dst, dst + (last - first)).
* It requires the range [dst, dst + (last - first)) to be valid and
* uninitialized.
*/
template<class In, class Type>
Type *uninitialized_copy(In first, In last, Type *dst) {
while (first != last)
new ((void *)dst++) Type(*first++);
return dst;
}
/**
* Initializes the memory [first, first + (last - first)) with the value x.
* It requires the range [first, first + (last - first)) to be valid and
* uninitialized.
*/
/*template<class Type, class Value>
void uninitialized_fill(Type *first, Type *last, const Value &x) {
while (first != last)
new ((void *)first++) Type(x);
}*/
/**
* Initializes the memory [dst, dst + n) with the value x.
* It requires the range [dst, dst + n) to be valid and
* uninitialized.
*/
template<class Type, class Value>
void uninitialized_fill_n(Type *dst, size_t n, const Value &x) {
while (n--)
new ((void *)dst++) Type(x);
}
} // End of namespace Common
#endif