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/* Descriptions of array-like objects.
Copyright (C) 2019-2020 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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 3, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_ARRAY_TRAITS_H
#define GCC_ARRAY_TRAITS_H
/* Implementation for single integers (and similar types). */
template<typename T, T zero = T (0)>
struct scalar_array_traits
{
typedef T element_type;
static const bool has_constant_size = true;
static const size_t constant_size = 1;
static const T *base (const T &x) { return &x; }
static size_t size (const T &) { return 1; }
};
template<typename T>
struct array_traits : scalar_array_traits<T> {};
/* Implementation for arrays with a static size. */
template<typename T, size_t N>
struct array_traits<T[N]>
{
typedef T element_type;
static const bool has_constant_size = true;
static const size_t constant_size = N;
static const T *base (const T (&x)[N]) { return x; }
static size_t size (const T (&)[N]) { return N; }
};
#endif
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