指向结构的指针

Question

I am working on assignment. I started with the struct:

struct figures_struct
{
    char figure_name[130];
    double figure_coordinates[1000000];
};

When I read name of the figure from the file, I stored it into the struct as follows:

strcpy(figures[i].figure_name,f_name);

Now I have to modify my code and need to use dynamic memory. I did:

struct figures_struct
{
    char figure_name[130];
    double figure_coordinates[100000];
};

struct figures_struct *figures = malloc(size * sizeof(struct figures_struct));

Now, how do I store figure name into my struct? figures[i].figure_name does not seem to be working.

Answer 1

strcpy(figures[i].figure_name, f_name);

仍然可以使用指针（因为指针和数组在C中几乎可以互换）

Answer 2

只要“ i”小于“大小”，它将立即起作用。