+ } else {
+
+ /* look for existing program */
+ for (i = 0; i < nb_programs; i++) {
+ if ((programs + i)->id == id) {
+ n = i;
+ break;
+ }
+ }
+ if (n == -1) {
+
+ /* new program */
+ n = nb_programs++;
+ workspace_t *tmp = (workspace_t *) callocordie (nb_programs, sizeof (workspace_t));
+ memcpy (tmp, programs, (nb_programs - 1) * sizeof (workspace_t));
+ free (programs);
+ programs = tmp;
+ } else {
+
+ /* clean old program */
+ if ((programs + n)->storage) {
+ free ((programs + n)->storage);
+ }
+ if ((programs + n)->root) {
+ delelement ((programs + n)->root);
+ }
+ if ((programs + n)->string) {
+ free ((programs + n)->string);
+ (programs + n)->string = NULL;
+ }
+ }
+ }
+
+ /* set program */
+ (programs + n)->id = id;
+ (programs + n)->answer = 0;
+ (programs + n)->storage = (double *) callocordie (nbmems, sizeof (double));
+ (programs + n)->storage_size = nbmems;
+ (programs + n)->root = dupelement (root);
+}
+
+double call (int id, int nbops, element_t **ops)