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authornass1pro <nass1pro@gmail.com>2020-06-09 19:48:34 +0200
committernass1pro <nass1pro@gmail.com>2020-06-13 11:31:00 +0200
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+/* ************************************************************************** */
+/* */
+/* ::: :::::::: */
+/* ft_vecgrow.c :+: :+: :+: */
+/* +:+ +:+ +:+ */
+/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
+/* +#+#+#+#+#+ +#+ */
+/* Created: 2020/04/01 19:13:07 by charles #+# #+# */
+/* Updated: 2020/04/01 21:15:20 by charles ### ########.fr */
+/* */
+/* ************************************************************************** */
+
+#include "libft_vec.h"
+
+/*
+** \brief Vector Growth factor
+*/
+
+#define FT_VEC_GROWTH_FACTOR 1.5
+
+/*
+** \brief Grow the vector capacity by a constant factor
+** \param vec Vector to grow
+** \return Passed vector of NULL on error
+*/
+
+t_ftvec *ft_vecgrow(t_ftvec *vec)
+{
+ size_t new_capacity;
+ void **new_data;
+
+ if (vec->capacity <= 1)
+ new_capacity = 2;
+ else
+ new_capacity = vec->capacity * FT_VEC_GROWTH_FACTOR;
+ if ((new_data = (void**)malloc(sizeof(void*) * new_capacity)) == NULL)
+ return (NULL);
+ ft_memcpy(new_data, vec->data, vec->size);
+ free(vec->data);
+ vec->data = new_data;
+ vec->capacity = new_capacity;
+ return (vec);
+}