vect_set.c

Go to the documentation of this file.

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   vect_set.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kfujita <kfujita@student.42tokyo.jp>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/01/28 01:10:41 by kfujita           #+#    #+#             */
/*   Updated: 2023/02/06 23:58:11 by kfujita          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "ft_vect.h"
#include "../ft_mem/ft_mem.h"
 
bool    vect_set(t_vect *vect, const void *elem, size_t index)
{
    unsigned char   *p;
 
    if (vect->p == NULL || vect->elemsize == 0 || vect->len < index)
        return (false);
    if (vect->cap <= index
        && !vect_reserve(vect, index + FT_VECT_EXPAND_STEP))
        return (false);
    p = vect->p;
    ft_memmove(p + (index * vect->elemsize), elem, vect->elemsize);
    if (vect->len == index)
        vect->len += 1;
    return (true);
}