59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_ltoa_base.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: gbaconni <gbaconni@42lausanne.ch> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2021/08/16 13:51:16 by gbaconni #+# #+# */
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/* Updated: 2022/04/18 09:13:04 by gbaconni ### lausanne.ch */
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/* */
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/* ************************************************************************** */
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#include "ft_printf.h"
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static long ft_ltoa_base_len(long n, long nbase);
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char *ft_ltoa_base(long n, char *base)
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{
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char *s;
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int i;
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long nbr;
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long nbase;
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nbase = ft_strlen(base);
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s = (char *) ft_calloc(ft_ltoa_base_len(n, nbase) + 1, sizeof(char));
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if (s == NULL)
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return (NULL);
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i = 0;
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nbr = n;
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if (nbr == 0)
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s[i++] = '0';
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if (nbr < 0)
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nbr = -nbr;
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while (nbr > 0)
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{
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s[i++] = base[nbr % nbase];
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nbr /= nbase;
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}
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if (n < 0)
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s[i++] = '-';
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s[i] = '\0';
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return (ft_strrev(s));
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}
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static long ft_ltoa_base_len(long n, long nbase)
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{
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size_t len;
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len = 0;
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if (n < 0 || n == 0)
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len++;
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while (!(n < 1 && n > -1))
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{
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n /= nbase;
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len++;
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}
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return (len);
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}
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