add: itoA

bozolib.h

@@ -3,3 +3,4 @@
 #include "./src/lst/lst.h"
 #include "./src/str/str.h"
 #include "./src/tab/tab.h"
+#include "./src/int/int.h"

src/int/int.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <stdlib.h>
+#include <string.h>
+
+char* itoA(int n);

src/int/itoA.c

@@ -0,0 +1,43 @@
+#include "int.h"
+
+static int	ft_nb_digit(int n)
+{
+	int	out;
+
+	out = 0;
+	while (n)
+	{
+		n /= 10;
+		out++;
+	}
+	return (out);
+}
+
+char* itoA(int n)
+{
+	char			*out;
+	unsigned int	nb[2];
+
+	if (!n)
+		return (strdup("0"));
+	nb[0] = ft_nb_digit(n);
+	if (n < 0)
+	{
+		nb[1] = -n;
+		nb[0]++;
+	}
+	else
+		nb[1] = n;
+	out = malloc(sizeof(char) * (nb[0] + 1));
+	if (out == NULL)
+		return (NULL);
+	out[nb[0]--] = 0;
+	if (n < 0)
+		out[0] = '-';
+	while (nb[1])
+	{
+		out[nb[0]--] = nb[1] % 10 + 48;
+		nb[1] /= 10;
+	}
+	return (out);
+}