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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include <valarray>
_LIBCPP_BEGIN_NAMESPACE_STD
// These two symbols are part of the v1 ABI but not part of the >=v2 ABI.
#if _LIBCPP_ABI_VERSION == 1
template _LIBCPP_FUNC_VIS valarray<size_t>::valarray(size_t);
template _LIBCPP_FUNC_VIS valarray<size_t>::~valarray();
#endif
template void valarray<size_t>::resize(size_t, size_t);
void
gslice::__init(size_t __start)
{
valarray<size_t> __indices(__size_.size());
size_t __k = __size_.size() != 0;
for (size_t __i = 0; __i < __size_.size(); ++__i)
__k *= __size_[__i];
__1d_.resize(__k);
if (__1d_.size())
{
__k = 0;
__1d_[__k] = __start;
while (true)
{
size_t __i = __indices.size() - 1;
while (true)
{
if (++__indices[__i] < __size_[__i])
{
++__k;
__1d_[__k] = __1d_[__k-1] + __stride_[__i];
for (size_t __j = __i + 1; __j != __indices.size(); ++__j)
__1d_[__k] -= __stride_[__j] * (__size_[__j] - 1);
break;
}
else
{
if (__i == 0)
return;
__indices[__i--] = 0;
}
}
}
}
}
_LIBCPP_END_NAMESPACE_STD
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