49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/* Descriptions of array-like objects.
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Copyright (C) 2019-2023 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_ARRAY_TRAITS_H
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#define GCC_ARRAY_TRAITS_H
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/* Implementation for single integers (and similar types). */
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template<typename T, T zero = T (0)>
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struct scalar_array_traits
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{
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typedef T element_type;
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static const bool has_constant_size = true;
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static const size_t constant_size = 1;
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static const T *base (const T &x) { return &x; }
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static size_t size (const T &) { return 1; }
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};
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template<typename T>
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struct array_traits : scalar_array_traits<T> {};
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/* Implementation for arrays with a static size. */
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template<typename T, size_t N>
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struct array_traits<T[N]>
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{
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typedef T element_type;
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static const bool has_constant_size = true;
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static const size_t constant_size = N;
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static const T *base (const T (&x)[N]) { return x; }
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static size_t size (const T (&)[N]) { return N; }
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};
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#endif
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