37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_atof.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: gbrochar <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/02/06 14:47:22 by gbrochar #+# #+# */
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/* Updated: 2019/02/21 15:34:04 by gbrochar ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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double ft_atof(const char *str)
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{
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char *tmp;
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double floating_part;
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double integer_part;
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integer_part = ft_atoi(str);
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floating_part = 0;
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tmp = ft_strchr(str, '.');
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if (tmp)
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{
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floating_part = ft_atoi(++tmp);
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while (*tmp >= '0' && *tmp <= '9')
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{
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floating_part /= (double)10;
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tmp++;
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}
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}
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if (integer_part < 0)
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return (-1.0 * (fabs(integer_part) + floating_part));
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return (integer_part + floating_part);
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}
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