Example Program
Allocators
Examples for memory allocation.
A tutorial about the use of allocators.
1#include <seqan/basic.h>
2using namespace seqan;
3
We define an arbitrary class.
4struct MyClass
5{
6};
7
8int main()
9{
We create 100 instances of MyClass on the heap using a default temporary allocator object Default.
10    MyClass* my_class_arr;
11    allocate(Default(), my_class_arr, 100);
12    arrayConstruct(my_class_arr, my_class_arr + 100);
Before the storage is deallocated, the MyClass objects have to be destroyed.
13    arrayDestruct(my_class_arr, my_class_arr + 100);
14    deallocate(Default(), my_class_arr, 100);
We can use any kind of object as an allocator. However, dedicated allocators offer more advanced functionality, e.g. clear.
15    Allocator<SimpleAlloc< > > alloc1;
16    char * char_array;
17    allocate(alloc1, char_array, 300);
clear can be used to deallocate all storage at once.
18    clear(alloc1);
19    return 0;
20}
SeqAn - Sequence Analysis Library - www.seqan.de
 

Page built @2011/02/08 21:37:00