/* gcc -Wall -pedantic `pkg-config --cflags --libs x11` -o test-xreply test-xreply.c */

#include <X11/Xlib.h>
#include <unistd.h>

#define NR_OF_ATOMS 100

int main()
{
    Display *display = NULL;

    int i = 0;
    const int alphabet_size = 'z' - 'a' + 1;
    char names[NR_OF_ATOMS][3];
    Atom atoms[NR_OF_ATOMS];
    char *xnames[NR_OF_ATOMS];

    display = XOpenDisplay(NULL);
    if (!display)
        return 2;

    /* Create a lot of atom names: aa, ..., az, ba, ..., bz, ... */
    for (i = 0; i < NR_OF_ATOMS; ++i)
    {
        names[i][0] = 'a' + ((i / alphabet_size) % alphabet_size);
        names[i][1] = 'a' + (i % alphabet_size);
        names[i][2] = '\0';
        xnames[i] = names[i];
    }

    /* Create the atoms. */
    if (!XInternAtoms(display, xnames, NR_OF_ATOMS, False, atoms))
        return 2;

    XCloseDisplay(display);
    return 0;
}