minishell/output/src/vec/ast/ast_functions3.c
2024-09-19 15:36:59 +02:00

81 lines
2.2 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ast_functions3.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/30 17:59:28 by maiboyer #+# #+# */
/* Updated: 2024/09/19 15:34:10 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/types.h"
#include "me/vec/vec_ast.h"
#include <stdlib.h>
t_error vec_ast_push_front(t_vec_ast *vec, t_ast_node element)
{
t_usize i;
if (vec->len == 0)
return (vec_ast_push(vec, element));
i = vec->len - 1;
if (vec->capacity < vec->len + 1 && \
vec_ast_reserve(vec, 3 * vec->len / 2 + 1))
return (ERROR);
while (i > 0)
{
vec->buffer[i + 1] = vec->buffer[i];
i--;
}
vec->buffer[1] = vec->buffer[0];
vec->buffer[0] = element;
vec->len++;
return (NO_ERROR);
}
t_error vec_ast_pop_front(t_vec_ast *vec, t_ast_node *value)
{
t_usize i;
if (vec->len <= 1)
return (vec_ast_pop(vec, value));
i = 0;
*value = vec->buffer[0];
vec->len--;
while (i < vec->len)
{
vec->buffer[i] = vec->buffer[i + 1];
i++;
}
mem_set_zero(&vec->buffer[i], sizeof(*vec->buffer));
return (NO_ERROR);
}
void vec_ast_reverse(t_vec_ast *vec)
{
t_ast_node temporary;
t_usize i;
i = 0;
while (i < vec->len / 2)
{
temporary = vec->buffer[vec->len - 1 - i];
vec->buffer[vec->len - 1 - i] = vec->buffer[i];
vec->buffer[i] = temporary;
i++;
}
}
t_error vec_ast_back(t_vec_ast *vec, t_ast_node **out)
{
t_ast_node *temporary;
if (out == NULL)
out = &temporary;
if (vec->len != 0)
return (*out = &vec->buffer[vec->len - 1], true);
return (false);
}