diff options
Diffstat (limited to 'src/dstr/ft_dstrgrow.c')
| -rw-r--r-- | src/dstr/ft_dstrgrow.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/dstr/ft_dstrgrow.c b/src/dstr/ft_dstrgrow.c new file mode 100644 index 0000000..9ad51ea --- /dev/null +++ b/src/dstr/ft_dstrgrow.c @@ -0,0 +1,31 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_dstrgrow.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/04/03 14:17:09 by charles #+# #+# */ +/* Updated: 2020/04/03 15:09:21 by charles ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_dstr.h" + +#define FT_DSTR_GROWTH_FACTOR 1.5 + +t_ftdstr *ft_dstrgrow(t_ftdstr *dstr, size_t at_least) +{ + size_t new_capacity; + char *new_str; + + new_capacity = dstr->capacity <= 1 ? 2 : dstr->capacity; + while (new_capacity < at_least) + 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; + dstr->str = new_str; + return (dstr); +} |