n == 0时不回收内存
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@@ -49,7 +49,7 @@ namespace TinySTL{
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}
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template<class T>
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void allocator<T>::deallocate(T *ptr, size_t n){
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assert(n != 0);
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if (n == 0) return;
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alloc::deallocate(static_cast<void *>(ptr), sizeof(T)* n);
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}
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