coffee/etl
1
0
Fork 0
mirror of https://github.com/ETLCPP/etl.git synced 2026-11-09 14:49:53 +08:00
Code Issues Packages Projects Releases Wiki Activity

Further optimisations.

Browse Source
This commit is contained in:
jwellbelove 2017-02-15 10:40:33 +00:00
parent 241cac9f42
commit aca086b22d
1 changed files with 44 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
src/memory.h
View File

@ -106,13 +106,14 @@ namespace etl
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_fill(TOutputIterator o_begin, TOutputIterator o_end, const T& value, TCounter& count)
{
count += std::distance(o_begin, o_end);
typedef typename std::iterator_traits<TOutputIterator>::value_type value_type;
while (o_begin != o_end)
{
::new (static_cast<void*>(etl::addressof(*o_begin))) value_type(value);
++o_begin;
++count;
}
return o_end;
@ -136,42 +137,42 @@ namespace etl
template <typename TOutputIterator, typename TSize, typename T, typename TCounter>
inline TOutputIterator uninitialized_fill_n(TOutputIterator o_begin, TSize n, const T& value, TCounter& count)
{
return etl::uninitialized_fill(o_begin, o_begin + n, value, count);
count += n;
return etl::uninitialized_fill(o_begin, o_begin + n, value);
}
//*****************************************************************************
/// Copies a range of objects to uninitialised memory.
///\ingroup memory
//*****************************************************************************
template <typename TInputIterator, typename TOutputIterator, typename TCounter>
template <typename TInputIterator, typename TOutputIterator>
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_copy(TInputIterator i_begin, TInputIterator i_end, TOutputIterator o_begin)
{
TOutputIterator o_end = std::copy(i_begin, i_end, o_begin);
count += std::distance(o_begin, o_end);
return o_end;
return std::copy(i_begin, i_end, o_begin);
}
//*****************************************************************************
/// Copies a range of objects to uninitialised memory.
///\ingroup memory
//*****************************************************************************
template <typename TInputIterator, typename TOutputIterator, typename TCounter>
template <typename TInputIterator, typename TOutputIterator>
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_copy(TInputIterator i_begin, TInputIterator i_end, TOutputIterator o_begin)
{
typedef typename std::iterator_traits<TOutputIterator>::value_type value_type;
TOutputIterator o_end = o_begin;
while (i_begin != i_end)
{
::new (static_cast<void*>(etl::addressof(*o_begin))) value_type(*i_begin);
::new (static_cast<void*>(etl::addressof(*o_end))) value_type(*i_begin);
++i_begin;
++o_begin;
++count;
++o_end;
}
return o_begin;
return o_end;
}
//*****************************************************************************
@ -200,15 +201,18 @@ namespace etl
{
typedef typename std::iterator_traits<TOutputIterator>::value_type value_type;
TOutputIterator o_end = o_begin;
while (i_begin != i_end)
{
::new (static_cast<void*>(etl::addressof(*o_begin))) value_type(*i_begin);
::new (static_cast<void*>(etl::addressof(*o_end))) value_type(*i_begin);
++i_begin;
++o_begin;
++count;
++o_end;
}
return o_begin;
count += std::distance(o_begin, o_end);
return o_end;
}
//*****************************************************************************
@ -229,7 +233,9 @@ namespace etl
template <typename TInputIterator, typename TSize, typename TOutputIterator, typename TCounter>
inline TOutputIterator uninitialized_copy_n(TInputIterator i_begin, TSize n, TOutputIterator o_begin, TCounter& count)
{
return etl::uninitialized_copy(i_begin, i_begin + n, o_begin, count);
count += n;
return etl::uninitialized_copy(i_begin, i_begin + n, o_begin);
}
//*****************************************************************************
@ -238,7 +244,7 @@ namespace etl
//*****************************************************************************
template <typename TOutputIterator>
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, void>::type
uninitialized_default_construct(TOutputIterator o_begin, TOutputIterator o_end)
uninitialized_default_construct(TOutputIterator /*o_begin*/, TOutputIterator /*o_end*/)
{
}
@ -280,13 +286,14 @@ namespace etl
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, void>::type
uninitialized_default_construct(TOutputIterator o_begin, TOutputIterator o_end, TCounter& count)
{
count += std::distance(o_begin, o_end);
typedef typename std::iterator_traits<TOutputIterator>::value_type value_type;
while (o_begin != o_end)
{
::new (static_cast<void*>(etl::addressof(*o_begin))) value_type;
++o_begin;
++count;
}
}
@ -295,7 +302,7 @@ namespace etl
///\ingroup memory
//*****************************************************************************
template <typename TOutputIterator, typename TSize>
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, TOutputIterator>::type
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_default_construct_n(TOutputIterator o_begin, TSize n)
{
TOutputIterator o_end = o_begin + n;
@ -308,7 +315,7 @@ namespace etl
///\ingroup memory
//*****************************************************************************
template <typename TOutputIterator, typename TSize>
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, TOutputIterator>::type
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_default_construct_n(TOutputIterator o_begin, TSize n)
{
TOutputIterator o_end = o_begin + n;
@ -324,7 +331,7 @@ namespace etl
///\ingroup memory
//*****************************************************************************
template <typename TOutputIterator, typename TSize, typename TCounter>
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, TOutputIterator>::type
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_default_construct_n(TOutputIterator o_begin, TSize n, TCounter& count)
{
TOutputIterator o_end = o_begin + n;
@ -340,12 +347,14 @@ namespace etl
///\ingroup memory
//*****************************************************************************
template <typename TOutputIterator, typename TSize, typename TCounter>
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, TOutputIterator>::type
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TOutputIterator>::value_type>::value, TOutputIterator>::type
uninitialized_default_construct_n(TOutputIterator o_begin, TSize n, TCounter& count)
{
TOutputIterator o_end = o_begin + n;
etl::uninitialized_default_construct(o_begin, o_end, count);
etl::uninitialized_default_construct(o_begin, o_end);
count += n;
return o_end;
}
@ -374,13 +383,14 @@ namespace etl
template <typename TOutputIterator, typename TCounter>
void uninitialized_value_construct(TOutputIterator o_begin, TOutputIterator o_end, TCounter& count)
{
count += std::distance(o_begin, o_end);
typedef typename std::iterator_traits<TOutputIterator>::value_type value_type;
while (o_begin != o_end)
{
::new (static_cast<void*>(etl::addressof(*o_begin))) value_type();
++o_begin;
++count;
++o_begin;
}
}
@ -408,7 +418,9 @@ namespace etl
{
TOutputIterator o_end = o_begin + n;
etl::uninitialized_value_construct(o_begin, o_end, count);
etl::uninitialized_value_construct(o_begin, o_end);
count += n;
return o_end;
}
@ -419,7 +431,7 @@ namespace etl
//*****************************************************************************
template <typename T>
typename etl::enable_if<etl::is_pod<T>::value, void>::type
destroy_at(T* p)
destroy_at(T* /*p*/)
{
}
@ -441,7 +453,7 @@ namespace etl
//*****************************************************************************
template <typename T, typename TCounter>
typename etl::enable_if<etl::is_pod<T>::value, void>::type
destroy_at(T* p, TCounter& count)
destroy_at(T* /*p*/, TCounter& count)
{
--count;
}
@ -465,7 +477,7 @@ namespace etl
//*****************************************************************************
template <typename TIterator>
typename etl::enable_if<etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, void>::type
destroy(TIterator i_begin, TIterator i_end)
destroy(TIterator /*i_begin*/, TIterator /*i_end*/)
{
}
@ -564,12 +576,13 @@ namespace etl
typename etl::enable_if<!etl::is_pod<typename std::iterator_traits<TIterator>::value_type>::value, TIterator>::type
destroy_n(TIterator i_begin, TSize n, TCounter& count)
{
count -= n;
while (n > 0)
{
etl::destroy_at(etl::addressof(*i_begin));
++i_begin;
--n;
--count;
}
return i_begin;