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      1 //===------------------------ valarray.cpp --------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #undef _LIBCPP_EXTERN_TEMPLATE
     11 #define _LIBCPP_EXTERN_TEMPLATE(...) extern template __VA_ARGS__;
     12 
     13 #include "valarray"
     14 
     15 _LIBCPP_BEGIN_NAMESPACE_STD
     16 
     17 template valarray<size_t>::valarray(size_t);
     18 template valarray<size_t>::~valarray();
     19 template void valarray<size_t>::resize(size_t, size_t);
     20 
     21 void
     22 gslice::__init(size_t __start)
     23 {
     24     valarray<size_t> __indices(__size_.size());
     25     size_t __k = __size_.size() != 0;
     26     for (size_t __i = 0; __i < __size_.size(); ++__i)
     27         __k *= __size_[__i];
     28     __1d_.resize(__k);
     29     if (__1d_.size())
     30     {
     31         __k = 0;
     32         __1d_[__k] = __start;
     33         while (true)
     34         {
     35             size_t __i = __indices.size() - 1;
     36             while (true)
     37             {
     38                 if (++__indices[__i] < __size_[__i])
     39                 {
     40                     ++__k;
     41                     __1d_[__k] = __1d_[__k-1] + __stride_[__i];
     42                     for (size_t __j = __i + 1; __j != __indices.size(); ++__j)
     43                         __1d_[__k] -= __stride_[__j] * (__size_[__j] - 1);
     44                     break;
     45                 }
     46                 else
     47                 {
     48                     if (__i == 0)
     49                         return;
     50                     __indices[__i--] = 0;
     51                 }
     52             }
     53         }
     54     }
     55 }
     56 
     57 _LIBCPP_END_NAMESPACE_STD
     58