t.elem=(int*)malloc(5*sizeof(int))
时间: 2023-11-21 12:05:20 浏览: 63
2225060346-汤岚淇-网络工程-实验2.docx
This code allocates memory dynamically for an array of 5 integers and assigns the address of the first element to the pointer variable t.elem.
In other words, t.elem is now pointing to a block of memory that can hold 5 integers, and we can access each element using array notation like t.elem[0], t.elem[1], t.elem[2], t.elem[3], and t.elem[4].
This is useful when we want to create an array whose size is not known at compile-time, or when we want to allocate memory on the heap instead of the stack.
However, it's important to remember to free the memory when we're done using it to avoid memory leaks. We can do this by calling free(t.elem).
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