I have a struct:

typedef struct{
int age;
int height
}Human;

I create a multi-dimensional array with that struct:

Human human_table[3][2]={ 
{{1,1},{1,1}},
{{1,1},{1,1}},
{{1,1},{1,1}},
};

I create a Pointer to the table

typedef struct human_table *humanPointer;

Now For the question, how can I create a function to modify the table above?

I currently have this:

void Modify_Human_age(humanPointer human_table, int x, int y, int New_Age)
{
human_table[x][y]->age=New_Age;
}

But I get an error and was looking for help on how to fix the Modify_Human_age function.

Thanks

CodePudding user response：

1. Never ever hide pointers behind the typedefs. It makes code much harder to maintain and read. So delete that typedef from your code.

2. Multidimensional tables in C are in the fact tables of tables. So the 2D table is a table of rows. So id the X is a row size and Y is number of rows the definition of the array should be type arr[Y][X]

3. For indexes and sizes use the correct (size_t) type indestead of int

void Modify_Human_age(size_t x, size_t y, Human (*human_table)[x],  int New_Age)
{
    human_table[y][x].age=New_Age;
}