Example Program
Allocators
Examples for memory allocation.
File "allocator.cpp"
A tutorial about the use of allocators.
1
2#include <seqan/basic.h>
3using namespace seqan;
4
We define an arbitrary class.
5struct MyClass
6{
7};
8
9int main()
10{
We create 100 instances of MyClass on the heap using a default temporary allocator object Default.
11    MyClass* my_class_arr;
12    allocate(Default(), my_class_arr, 100);
13    arrayConstruct(my_class_arr, my_class_arr + 100);
Before the storage is deallocated, the MyClass objects have to be destroyed.
14    arrayDestruct(my_class_arr, my_class_arr + 100);
15    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.
16    Allocator<SimpleAlloc< > > alloc1;
17    char * char_array;
18    allocate(alloc1, char_array, 300);
clear can be used to deallocate all storage at once.
19    clear(alloc1);
20    return 0;
21}
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