lib/cdt/dtwalk.c

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#include        "dthdr.h"

/*      Walk a dictionary and all dictionaries viewed through it.
**      userf:  user function
**
**      Written by Kiem-Phong Vo (5/25/96)
*/

#if __STD_C
int dtwalk(reg Dt_t* dt, int (*userf)(Dt_t*, Void_t*, Void_t*), Void_t* data)
#else
int dtwalk(dt,userf,data)
reg Dt_t*       dt;
int(*           userf)();
Void_t*         data;
#endif
{
        reg Void_t      *obj, *next;
        reg Dt_t*       walk;
        reg int         rv;

        for(obj = dtfirst(dt); obj; )
        {       if(!(walk = dt->walk) )
                        walk = dt;
                next = dtnext(dt,obj);
                if((rv = (*userf)(walk, obj, data )) < 0)
                        return rv;
                obj = next;
        }
        return 0;
}