1//===----------------------------------------------------------------------===//
 2//
 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 4// See https://llvm.org/LICENSE.txt for license information.
 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 6//
 7//===----------------------------------------------------------------------===//
 8
 9#include <valarray>
10
11_LIBCPP_BEGIN_NAMESPACE_STD
12
13// These two symbols are part of the v1 ABI but not part of the >=v2 ABI.
14#if _LIBCPP_ABI_VERSION == 1
15template _LIBCPP_EXPORTED_FROM_ABI valarray<size_t>::valarray(size_t);
16template _LIBCPP_EXPORTED_FROM_ABI valarray<size_t>::~valarray();
17#endif
18
19template void valarray<size_t>::resize(size_t, size_t);
20
21void gslice::__init(size_t __start) {
22  valarray<size_t> __indices(__size_.size());
23  size_t __k = __size_.size() != 0;
24  for (size_t __i = 0; __i < __size_.size(); ++__i)
25    __k *= __size_[__i];
26  __1d_.resize(__k);
27  if (__1d_.size()) {
28    __k        = 0;
29    __1d_[__k] = __start;
30    while (true) {
31      size_t __i = __indices.size() - 1;
32      while (true) {
33        if (++__indices[__i] < __size_[__i]) {
34          ++__k;
35          __1d_[__k] = __1d_[__k - 1] + __stride_[__i];
36          for (size_t __j = __i + 1; __j != __indices.size(); ++__j)
37            __1d_[__k] -= __stride_[__j] * (__size_[__j] - 1);
38          break;
39        } else {
40          if (__i == 0)
41            return;
42          __indices[__i--] = 0;
43        }
44      }
45    }
46  }
47}
48
49_LIBCPP_END_NAMESPACE_STD