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2004-03-10 Paolo Carlini <pcarlini@suse.de>

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Add include/bits/valarray_array.tcc changes missing from
	Jerry's commit to mainline.

From-SVN: r79260
This commit is contained in:
Paolo Carlini 2004-03-10 17:08:32 +00:00
parent 452c159ed1
commit e9264dac56
1 changed files with 69 additions and 0 deletions
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69
libstdc++-v3/include/bits/valarray_array.tcc
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@ -52,6 +52,12 @@ namespace std
}
}
// 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,
@ -71,6 +77,12 @@ namespace std
}
}
// 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,
@ -90,6 +102,39 @@ namespace std
}
}
// 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)
@ -99,6 +144,8 @@ namespace std
*__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,
@ -109,6 +156,8 @@ namespace std
*__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,
@ -119,6 +168,26 @@ namespace std
__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,