245 lines
7.1 KiB
C++
245 lines
7.1 KiB
C++
// The template and inlines for the -*- C++ -*- internal _Array helper class.
|
|
|
|
// Copyright (C) 1997-2016 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library 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.
|
|
|
|
// This library 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.
|
|
|
|
// Under Section 7 of GPL version 3, you are granted additional
|
|
// permissions described in the GCC Runtime Library Exception, version
|
|
// 3.1, as published by the Free Software Foundation.
|
|
|
|
// You should have received a copy of the GNU General Public License and
|
|
// a copy of the GCC Runtime Library Exception along with this program;
|
|
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
/** @file bits/valarray_array.tcc
|
|
* This is an internal header file, included by other library headers.
|
|
* Do not attempt to use it directly. @headername{valarray}
|
|
*/
|
|
|
|
// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
|
|
|
|
#ifndef _VALARRAY_ARRAY_TCC
|
|
#define _VALARRAY_ARRAY_TCC 1
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_fill(_Array<_Tp> __a, size_t __n, _Array<bool> __m,
|
|
const _Tp& __t)
|
|
{
|
|
_Tp* __p = __a._M_data;
|
|
bool* __ok (__m._M_data);
|
|
for (size_t __i=0; __i < __n; ++__i, ++__ok, ++__p)
|
|
{
|
|
while (!*__ok)
|
|
{
|
|
++__ok;
|
|
++__p;
|
|
}
|
|
*__p = __t;
|
|
}
|
|
}
|
|
|
|
// Copy n elements of a into consecutive elements of b. When m is
|
|
// false, the corresponding element of a is skipped. m must contain
|
|
// at least n true elements. a must contain at least n elements and
|
|
// enough elements to match up with m through the nth true element
|
|
// of m. I.e. if n is 10, m has 15 elements with 5 false followed
|
|
// by 10 true, a must have 15 elements.
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_copy(_Array<_Tp> __a, _Array<bool> __m, _Array<_Tp> __b,
|
|
size_t __n)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
bool* __ok (__m._M_data);
|
|
for (_Tp* __q = __b._M_data; __q < __b._M_data + __n;
|
|
++__q, ++__ok, ++__p)
|
|
{
|
|
while (! *__ok)
|
|
{
|
|
++__ok;
|
|
++__p;
|
|
}
|
|
*__q = *__p;
|
|
}
|
|
}
|
|
|
|
// Copy n consecutive elements from a into elements of b. Elements
|
|
// of b are skipped if the corresponding element of m is false. m
|
|
// must contain at least n true elements. b must have at least as
|
|
// many elements as the index of the nth true element of m. I.e. if
|
|
// m has 15 elements with 5 false followed by 10 true, b must have
|
|
// at least 15 elements.
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b,
|
|
_Array<bool> __m)
|
|
{
|
|
_Tp* __q (__b._M_data);
|
|
bool* __ok (__m._M_data);
|
|
for (_Tp* __p = __a._M_data; __p < __a._M_data+__n;
|
|
++__p, ++__ok, ++__q)
|
|
{
|
|
while (! *__ok)
|
|
{
|
|
++__ok;
|
|
++__q;
|
|
}
|
|
*__q = *__p;
|
|
}
|
|
}
|
|
|
|
// Copy n elements from a into elements of b. Elements of a are
|
|
// skipped if the corresponding element of m is false. Elements of
|
|
// b are skipped if the corresponding element of k is false. m and
|
|
// k must contain at least n true elements. a and b must have at
|
|
// least as many elements as the index of the nth true element of m.
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_copy(_Array<_Tp> __a, _Array<bool> __m, size_t __n,
|
|
_Array<_Tp> __b, _Array<bool> __k)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
_Tp* __q (__b._M_data);
|
|
bool* __srcok (__m._M_data);
|
|
bool* __dstok (__k._M_data);
|
|
for (size_t __i = 0; __i < __n;
|
|
++__srcok, ++__p, ++__dstok, ++__q, ++__i)
|
|
{
|
|
while (! *__srcok)
|
|
{
|
|
++__srcok;
|
|
++__p;
|
|
}
|
|
while (! *__dstok)
|
|
{
|
|
++__dstok;
|
|
++__q;
|
|
}
|
|
*__q = *__p;
|
|
}
|
|
}
|
|
|
|
// Copy n consecutive elements of e into consecutive elements of a.
|
|
// I.e. a[i] = e[i].
|
|
template<typename _Tp, class _Dom>
|
|
void
|
|
__valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n, _Array<_Tp> __a)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
for (size_t __i = 0; __i < __n; ++__i, ++__p)
|
|
*__p = __e[__i];
|
|
}
|
|
|
|
// Copy n consecutive elements of e into elements of a using stride
|
|
// s. I.e., a[0] = e[0], a[s] = e[1], a[2*s] = e[2].
|
|
template<typename _Tp, class _Dom>
|
|
void
|
|
__valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n,
|
|
_Array<_Tp> __a, size_t __s)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
for (size_t __i = 0; __i < __n; ++__i, __p += __s)
|
|
*__p = __e[__i];
|
|
}
|
|
|
|
// Copy n consecutive elements of e into elements of a indexed by
|
|
// contents of i. I.e., a[i[0]] = e[0].
|
|
template<typename _Tp, class _Dom>
|
|
void
|
|
__valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n,
|
|
_Array<_Tp> __a, _Array<size_t> __i)
|
|
{
|
|
size_t* __j (__i._M_data);
|
|
for (size_t __k = 0; __k < __n; ++__k, ++__j)
|
|
__a._M_data[*__j] = __e[__k];
|
|
}
|
|
|
|
// Copy n elements of e indexed by contents of f into elements of a
|
|
// indexed by contents of i. I.e., a[i[0]] = e[f[0]].
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_copy(_Array<_Tp> __e, _Array<size_t> __f,
|
|
size_t __n,
|
|
_Array<_Tp> __a, _Array<size_t> __i)
|
|
{
|
|
size_t* __g (__f._M_data);
|
|
size_t* __j (__i._M_data);
|
|
for (size_t __k = 0; __k < __n; ++__k, ++__j, ++__g)
|
|
__a._M_data[*__j] = __e._M_data[*__g];
|
|
}
|
|
|
|
// Copy n consecutive elements of e into elements of a. Elements of
|
|
// a are skipped if the corresponding element of m is false. m must
|
|
// have at least n true elements and a must have at least as many
|
|
// elements as the index of the nth true element of m. I.e. if m
|
|
// has 5 false followed by 10 true elements and n == 10, a must have
|
|
// at least 15 elements.
|
|
template<typename _Tp, class _Dom>
|
|
void
|
|
__valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n,
|
|
_Array<_Tp> __a, _Array<bool> __m)
|
|
{
|
|
bool* __ok (__m._M_data);
|
|
_Tp* __p (__a._M_data);
|
|
for (size_t __i = 0; __i < __n; ++__i, ++__ok, ++__p)
|
|
{
|
|
while (! *__ok)
|
|
{
|
|
++__ok;
|
|
++__p;
|
|
}
|
|
*__p = __e[__i];
|
|
}
|
|
}
|
|
|
|
|
|
template<typename _Tp, class _Dom>
|
|
void
|
|
__valarray_copy_construct(const _Expr<_Dom, _Tp>& __e, size_t __n,
|
|
_Array<_Tp> __a)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
for (size_t __i = 0; __i < __n; ++__i, ++__p)
|
|
new (__p) _Tp(__e[__i]);
|
|
}
|
|
|
|
|
|
template<typename _Tp>
|
|
void
|
|
__valarray_copy_construct(_Array<_Tp> __a, _Array<bool> __m,
|
|
_Array<_Tp> __b, size_t __n)
|
|
{
|
|
_Tp* __p (__a._M_data);
|
|
bool* __ok (__m._M_data);
|
|
for (_Tp* __q = __b._M_data; __q < __b._M_data+__n; ++__q, ++__ok, ++__p)
|
|
{
|
|
while (! *__ok)
|
|
{
|
|
++__ok;
|
|
++__p;
|
|
}
|
|
new (__q) _Tp(*__p);
|
|
}
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#endif /* _VALARRAY_ARRAY_TCC */
|