Question

I apologize if this is a repeated question, but I can’t seem to find the keywords to search for the question that I’m about to ask.

Basically, I have defined myself a struct.

#define max_terms 101

typedef struct{
    int row, col, value;
} term;

Now I have three different terms namely, a[max_terms], b[max_terms] and c[max_terms]
I would like to input into the following function’s parameter, so that I can choose to work on which of the three defined arrays

void input(/*parameter here*/){
    a[0].row = 0; // want to be able to choose the array to work on instead of just a
}

Thank you for reading!

Answer 1

The easiest approach would be to pass a pointer to the first element of the array to the function.

void input(term *a)
{
    a[0].row = 0;
}

/* … */

term b[max_terms];
input(b);

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As giorashc notes in the comments, if the arrays don’t all use the same size you’ll want to pass the actual size as an additional parameter.