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strs2.c

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+#include "main.h"
+/**
+ * _strlen - Returns the lenght of a string.
+ * @s: Type char pointer
+ * Return: c.
+ */
+int _strlen(char *s)
+{
+	int c;
+
+	for (c = 0; s[c] != 0; c++)
+		;
+	return (c);
+
+}
+/**
+ * _strlenc - Strlen function but applied for constant char pointer s
+ * @s: Type char pointer
+ * Return: c
+ */
+int _strlenc(const char *s)
+{
+	int c;
+
+	for (c = 0; s[c] != 0; c++)
+		;
+	return (c);
+}
+
+/**
+ * printf_string - print a string.
+ * @val: argumen t.
+ * Return: the length of the string.
+ */
+
+int printf_string(va_list val)
+{
+	char *s;
+	int i, len;
+
+	s = va_arg(val, char *);
+	if (s == NULL)
+	{
+		s = "(null)";
+		len = _strlen(s);
+		for (i = 0; i < len; i++)
+			_putchar(s[i]);
+		return (len);
+	}
+	else
+	{
+		len = _strlen(s);
+		for (i = 0; i < len; i++)
+			_putchar(s[i]);
+		return (len);
+	}
+}
+
+/**
+ * printf_unsigned - prints integer
+ * @args: argument to print
+ * Return: number of characters printed
+ */
+int printf_unsigned(va_list args)
+{
+	unsigned int n = va_arg(args, unsigned int);
+	int num, last = n % 10, digit, exp = 1;
+	int  i = 1;
+
+	n = n / 10;
+	num = n;
+
+	if (last < 0)
+	{
+		_putchar('-');
+		num = -num;
+		n = -n;
+		last = -last;
+		i++;
+	}
+	if (num > 0)
+	{
+		while (num / 10 != 0)
+		{
+			exp = exp * 10;
+			num = num / 10;
+		}
+		num = n;
+		while (exp > 0)
+		{
+			digit = num / exp;
+			_putchar(digit + '0');
+			num = num - (digit * exp);
+			exp = exp / 10;
+			i++;
+		}
+	}
+	_putchar(last + '0');
+
+	return (i);
+}
+
+/**
+ * printf_srev - function that prints a str in reverse
+ * @args: type struct va_arg where is allocated printf arguments
+ * Return: the string
+ */
+int printf_srev(va_list args)
+{
+
+	char *s = va_arg(args, char*);
+	int i;
+	int j = 0;
+
+	if (s == NULL)
+		s = "(null)";
+	while (s[j] != '\0')
+		j++;
+	for (i = j - 1; i >= 0; i--)
+		_putchar(s[i]);
+	return (j);
+}