STL的simple_alloc

simple_alloc只是对配置器的简单包装

 

代码如下：

 1 #include "__malloc_alloc_template.h"
 2 #include "__defalut_alloc_template.h"
 3 
 4 template<typename T, typename Alloc>
 5 class simple_alloc
 6 {
 7 public:
 8     static T* allocate(size_t n)
 9     {
10         return 0 == n ? 0 : (T*)Alloc::allocate(n * sizeof(T));
11     }
12     static T* allocate(void)
13     {
14         return (T*) Alloc::allocate(sizeof(T));
15     }
16     static void deallocate(T* p, size_t n)
17     {
18         if(0 != n) Alloc::deallocate(p, n * sizeof(T));
19     }
20     static void deallocate(T* p)
21     {
22         Alloc::deallocate(p, sizeof(T));
23     }
24 };

 

posted @ 2018-06-11 14:47  小小Cv  阅读(573)  评论(0)  编辑  收藏  举报