Lines Matching refs:sibling
83 * to 1st sibling (child1). If root is not single node, return NULL.
85 * Siblings that are actually sibling lists themselves are handled
98 register PCCTS_AST *child, *sibling=NULL, *tail=NULL /*MR23*/, *w;
111 if ( sibling == NULL ) {sibling = child; tail = w;}
115 if ( root==NULL ) root = sibling;
116 else root->setDown(sibling);
164 if ( sib==NULL ) /* hit end of sibling list */
179 /* nothing below to try, try next sibling */
187 /* record sibling cursor so we can pick up next from there */
404 // MR9 Made copies of the pointers to sibling.