reversed print

Jenni-Foued · Oct 27, 2020 · 44294c0 · 44294c0
1 parent fdb12bd
commit 44294c0
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Showing 4 changed files with 28 additions and 1 deletion.
diff --git a/_printf.c b/_printf.c
@@ -16,6 +16,7 @@ int (*printer(char formati))(va_list)
 	{'d', print_i},
 	{'R', print_rot13},
 	{'b', print_b},
+	{'r', print_r},
 	{'\0', NULL}
 	};
 	int i = 0;

diff --git a/holberton.h b/holberton.h
@@ -18,4 +18,5 @@ int print_i(va_list arg);
 int _putchar(char c);
 int print_rot13(va_list arg);
 int print_b(va_list arg);
+int print_r(va_list arg);
 #endif
diff --git a/print_b.c b/print_b.c
@@ -13,7 +13,7 @@ int print_b(va_list arg)
 	int count = 0, i = 0;
 	unsigned int tab[31];
 
-	if (b == 0)
+	if (!b)
 	{
 		_putchar('0');
 		count++;

diff --git a/print_r.c b/print_r.c
@@ -0,0 +1,25 @@
+#include "holberton.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+/**
+ * print_r - Print a string in reverse.
+ * @arg: String address.
+ * Return: integer.
+ */
+int print_r(va_list arg)
+{
+	char *str = va_arg(arg, char *);
+	int i = 0;
+
+	if (str == NULL)
+		str = "(nil)";
+	while (str[i])
+		i++;
+	i--;
+	for (; str[i]; i--)
+		_putchar(str[i]);
+	return (i);
+}