c03 and begin c04

7 files changed, 275 insertions, 0 deletions

diff --git a/c04/ex00/ft_strlen.c b/c04/ex00/ft_strlen.c
new file mode 100644
index 0000000..271088d
--- /dev/null
+++ b/c04/ex00/ft_strlen.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strlen.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 08:31:20 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:32:00 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int ft_strlen(char *str)
+{
+	int	counter;
+
+	counter = 0;
+	while (str[counter])
+		counter++;
+	return (counter);
+}
diff --git a/c04/ex01/ft_putstr.c b/c04/ex01/ft_putstr.c
new file mode 100644
index 0000000..e98b5a0
--- /dev/null
+++ b/c04/ex01/ft_putstr.c
@@ -0,0 +1,22 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putstr.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 07:22:38 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:34:03 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+void ft_putstr(char *str)
+{
+	while (*str)
+	{
+		write(1, str, 1);
+		str++;
+	}
+}
diff --git a/c04/ex02/ft_putnbr.c b/c04/ex02/ft_putnbr.c
new file mode 100644
index 0000000..8a13dc5
--- /dev/null
+++ b/c04/ex02/ft_putnbr.c
@@ -0,0 +1,44 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putnbr.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 07:24:04 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:34:48 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+void	ft_putchar(char c)
+{
+	write(1, &c, 1);
+}
+
+void	ft_putnbr(int nb)
+{
+	int 			i;
+	int				rev_digits[100];
+	unsigned int	nbu;
+
+	if (nb < 0)
+	{
+		ft_putchar('-');
+		nbu = -nb;
+	} else
+		nbu = nb;
+	i = 0;
+	while (nbu > 0)
+	{
+		rev_digits[i] = nbu % 10;
+		nbu /= 10;
+		i++;
+	}
+	while (i > 0)
+	{
+		i--;
+		ft_putchar(rev_digits[i] + '0');
+	}
+}
diff --git a/c04/ex03/ft_atoi.c b/c04/ex03/ft_atoi.c
new file mode 100644
index 0000000..0d4247b
--- /dev/null
+++ b/c04/ex03/ft_atoi.c
@@ -0,0 +1,50 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_atoi.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 07:31:38 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:36:47 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	pow10(int exponent)
+{
+	int	accumulator;
+
+	accumulator = 1;
+	while (exponent > 0)
+	{
+		accumulator *= 10;
+		exponent--;
+	}
+	return (accumulator);
+}
+
+int	ft_atoi(char *str)
+{
+	int	is_negative;
+	int	nb;
+	int	i;
+
+	while (*str == ' ' || *str == '\t' || *str == '\n'
+		   || *str == '\v' || *str == '\f' || *str == '\r')
+		str++;
+	while (*str == '-' || *str == '+')
+	{
+		if (*str == '-')
+			is_negative = !is_negative;
+		str++;
+	}
+	i = 0;
+	while (str[i] >= '0' && str[i] <= '9')
+	{
+		nb += pow10(i) * (str[i] - '0');
+		i++;
+	}
+	if (is_negative)
+		nb = -nb;
+	return (nb);
+}
diff --git a/c04/ex04/ft_putnbr_base.c b/c04/ex04/ft_putnbr_base.c
new file mode 100644
index 0000000..6827475
--- /dev/null
+++ b/c04/ex04/ft_putnbr_base.c
@@ -0,0 +1,70 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putnbr_base.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 07:47:44 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:37:59 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int		check_base(char *base)
+{
+	int	i;
+
+	if (!*base)
+		return (0);
+	while (*base)
+	{
+		if (*base == '-' || *base == '+')
+			return (0);
+		i = 0;
+		while (base[i])
+		{
+			if (base[i] == *base)
+				return (0);
+			i++;
+		}
+	}
+	return (1);
+}
+
+int		my_strlen(char *str)
+{
+	int	counter;
+
+	counter = 0;
+	while (*str)
+	{
+		counter++;
+		str++;
+	}
+	return (counter);
+}
+
+void	ft_putnbr_base(int nbr, char *base)
+{
+	int	radix;
+	int	i;
+	int	nb;
+	int rev_digits[1024];
+
+	if (!check_base(base))
+		return;
+	radix = my_strlen(base);
+	nb = 0;
+	i = 0;
+	while (nb > 0)
+	{
+		rev_digits[i] = base[nb % radix];
+		nb /= radix;
+		i++;
+	}
+	while (i > 0)
+	{
+		i--;
+		write(1, rev_digits  + i, 1);
+	}
+}
diff --git a/c04/ex05/ft_atoi_base.c b/c04/ex05/ft_atoi_base.c
new file mode 100644
index 0000000..b595a5c
--- /dev/null
+++ b/c04/ex05/ft_atoi_base.c
@@ -0,0 +1,48 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_atoi_base.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/06 08:07:17 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/06 08:30:16 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int	my_pow(int base, int exponent)
+{
+	int	accumulator;
+
+	accumulator = 1;
+	while (exponent > 0)
+	{
+		accumulator *= base;
+		exponent--;
+	}
+	return (accumulator);
+}
+
+int ft_atoi_base(char *str, char *base)
+{
+	int	radix;
+	int	i;
+	int	j;
+	int	nb;
+
+	radix = 0;
+	while (base[radix])
+		radix++;
+	i = 0;
+	while (str[i])
+		i++;
+	j = 0;
+	while (i > 0)
+	{
+		nb += my_pow(radix, j);
+		nb %= radix;
+		i--;
+		j++;
+	}
+	return nb;
+}
diff --git a/c04/main.c b/c04/main.c
new file mode 100644
index 0000000..a165b3c
--- /dev/null
+++ b/c04/main.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <string.h>
+#include "ex00/ft_strlen.c"
+#include "ex01/ft_putstr.c"
+#include "ex02/ft_putnbr.c"
+#include "ex03/ft_atoi.c"
+#include "ex04/ft_putnbr_base.c"
+#include "ex05/ft_atoi_base.c"
+
+int main()
+{
+	char *s1 = "jesuis7";
+	printf("%d\n", ft_strlen(s1));
+
+	char *s = "bonjour";
+	ft_putstr(s);
+	printf("\n");
+
+
+}