\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)
ta_create_array¶
View page sourceAllocate An Array and Call Default Constructor for its Elements¶
Syntax¶
array = thread_alloc::create_array< Type >( size_min , size_out ) .
Purpose¶
Create a new raw array using thread_alloc memory allocator (works well in a multi-threading environment) and call default constructor for each element.
Type¶
The type of the elements of the array.
size_min¶
This argument has prototype
size_tsize_min
This is the minimum number of elements that there can be in the resulting array .
size_out¶
This argument has prototype
size_t&size_out
The input value of this argument does not matter. Upon return, it is the actual number of elements in array ( size_min <= size_out ).
array¶
The return value array has prototype
Type * array
It is array with size_out elements. The default constructor for Type is used to initialize the elements of array . Note that delete_array should be used to destroy the array when it is no longer needed.
Delta¶
The amount of memory inuse by the current thread, will increase delta where
sizeof( Type ) * ( size_out + 1) > delta >=sizeof( Type ) * size_out
The available memory will decrease by delta , (and the allocation will be faster) if a previous allocation with size_min between its current value and size_out is available.
Alignment¶
We call a memory allocation aligned if the address is a multiple
of the number of bytes in a size_t value.
If the system new allocator is aligned, then array
pointer is also aligned.