Function raxFindParentLink

src/rax.c:934–943

Return the memory address where the 'parent' node stores the specified * 'child' pointer, so that the caller can update the pointer with another * one if needed. The function assumes it will find a match, otherwise the * operation is an undefined behavior (it will continue scanning the * memory without any bound checking). */

 * operation is an undefined behavior (it will continue scanning the
 * memory without any bound checking). */
raxNode **raxFindParentLink(raxNode *parent, raxNode *child) {
    raxNode **cp = raxNodeFirstChildPtr(parent);
    raxNode *c;
    while(1) {
        memcpy(&c,cp,sizeof(c));
        if (c == child) break;
        cp++;
    }
    return cp;
}

/* Low level child removal from node. The new node pointer (after the child
 * removal) is returned. Note that this function does not fix the pointer