From c98de126d2252fe47dc2a9094a5f9a8fa6b4b60a Mon Sep 17 00:00:00 2001 From: Charles Cabergs Date: Sun, 11 Oct 2020 15:52:52 +0200 Subject: Removing libft/minishell_test submodules, Removing subject/README/etc --- libft/src/dstr/ft_dstrgrow.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 libft/src/dstr/ft_dstrgrow.c (limited to 'libft/src/dstr/ft_dstrgrow.c') diff --git a/libft/src/dstr/ft_dstrgrow.c b/libft/src/dstr/ft_dstrgrow.c new file mode 100644 index 0000000..40cad86 --- /dev/null +++ b/libft/src/dstr/ft_dstrgrow.c @@ -0,0 +1,41 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_dstrgrow.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: charles +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/04/03 14:17:09 by charles #+# #+# */ +/* Updated: 2020/04/04 19:56:26 by charles ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_dstr.h" + +#define FT_DSTR_GROWTH_FACTOR 1.5 + +/* +** \brief Grow the capacity of a dynamic string +** \param dstr Dynamic string to grow +** \param at_least Minimum capacity - 1 required +** \return Passed dynamic string or NULL on error +*/ + +t_ftdstr *ft_dstrgrow(t_ftdstr *dstr, size_t at_least) +{ + size_t new_capacity; + char *new_str; + + if (at_least < dstr->capacity - 1) + return (dstr); + new_capacity = dstr->capacity <= 1 ? 2 : dstr->capacity; + while (at_least > new_capacity - 1) + new_capacity *= FT_DSTR_GROWTH_FACTOR; + if ((new_str = (char*)malloc(sizeof(char) * new_capacity)) == NULL) + return (NULL); + ft_memcpy(new_str, dstr->str, dstr->capacity); + dstr->capacity = new_capacity; + free(dstr->str); + dstr->str = new_str; + return (dstr); +} -- cgit