main3.c

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#include <stdio.h>
#include "cgraph.h"

int main(int argc, char **argv)
{
    Agraph_t *g;
    Agnode_t *u, *v;
        int rv;

        g = agread(stdin,0);
        if (argc >= 3) {
                u = agnode(g,argv[1],FALSE);
                v = agnode(g,argv[2],FALSE);
                rv = agnodebefore(u,v);
                fprintf(stderr,"agnodebefore returns %d\n",rv);
                fprintf(stderr,"dtsize %d\n",dtsize(g->n_seq));
        }
        agwrite(g,stdout);
}