vect_append_range.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   vect_append_range.c                                :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kfujita <kfujita@student.42tokyo.jp>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/02/06 19:12:30 by kfujita           #+#    #+#             */
/*   Updated: 2023/02/06 23:57:28 by kfujita          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "ft_vect.h"
 
#include "../ft_math/ft_math.h"
#include "../ft_mem/ft_mem.h"
 
static const int    g_flag_string = 1;
static const int    g_flag_not_string = 0;
 
static bool vect_append_internal(
    t_vect *vect, const void *value, size_t count, int is_str)
{   
    size_t  bytes_to_copy;
    size_t  new_len;
 
    if (!can_mulp(vect->elemsize, count))
        return (false);
    if (!can_addp(vect->len, count))
        return (false);
    new_len = vect->len + count;
    if (vect->cap < (new_len + is_str) && !vect_reserve(vect, new_len + is_str))
        return (false);
    bytes_to_copy = vect->elemsize * count;
    ft_memmove(((unsigned char *)vect->p) + (vect->len * vect->elemsize),
        value, bytes_to_copy);
    vect->len = new_len;
    if (is_str)
        ((char *)(vect->p))[vect->len] = '\0';
    return (true);
}
 
bool    vect_append_range(t_vect *vect, const void *value, size_t count)
{
    return (vect_append_internal(vect, value, count, g_flag_not_string));
}
 
bool    vect_append_str(t_vect *vect, const char *value, size_t count)
{
    return (vect_append_internal(vect, value, count, g_flag_string));
}