Debugging with gdb doesn't show values in array of struct

    // Complex watchers
    {
        struct S { int a; double b; } s[10];
        for (int i = 0; i != 10; ++i) {
X           s[i].a = i;  // Break here. Expand s and s[0]. Step.
            // Watcher Context: "Add New Watcher".
            // Type    ['s[%d].a' % i for i in range(5)]
            // Expand it, continue stepping.
        }
    }