View Array contents in Qt Creator debugger

Question

I am using Qt on Ubuntu. When I debug I only see the very first value of the array in Locals and Watchers. How can I view all the array contents?

struct node         


        

Answer 1

Two dimensional arrays sometimes cannot be displayed that way. There is a work-around. First, declare a two-dimensional array as a one-dimensional array like this:

    int width = 3;
    int height = 4;
    int* array2D = new int [width*height];
    int x,y;
    for(x=width-1;x>-1;x--)
        for(y=height-1;y>-1;y--)
            array2D[x*height + y] = -1; // mark a breakpoint here!
    // add to expression evaluator: (int[3][4]) *array2D
    delete [] array2D;

Then add (int[3][4]) *array2D to the expression evaluator. Unfortunately you have to index the array your self, but you can write a special-purpose inline function or use another encapsulation method to make it slightly cleaner.