added: 2-str_concat.c

Author: hackerSa3edy

0x0B-malloc_free/2-main.c

@@ -0,0 +1,23 @@
+#include "main.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * main - check the code for ALX School students.
+ *
+ * Return: Always 0.
+ */
+int main(void)
+{
+	char *s;
+
+	s = str_concat("Betty ", "Holberton");
+	if (s == NULL)
+	{
+		printf("failed\n");
+		return (1);
+	}
+	printf("%s\n", s);
+	free(s);
+	return (0);
+}

0x0B-malloc_free/2-str_concat.c

@@ -0,0 +1,43 @@
+#include "main.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * str_concat - concatenates two strings.
+ *
+ * @string1: first string.
+ * @string2: second string.
+ *
+ * Return: pointer to the newly string.
+ */
+char *str_concat(char *string1, char *string2)
+{
+	unsigned int index1, index2, counter;
+	char *ptr;
+
+	for (index1 = 0; string1[index1];)
+		index1++;
+
+	for (index2 = 0; string2[index2];)
+		index2++;
+
+	ptr = malloc((index1 + index2 - 1) * sizeof(char));
+	if (ptr == NULL)
+		return (NULL);
+
+	counter = 0;
+	for (index1 = 0; string1[index1]; index1++)
+	{
+		ptr[index1] = string1[index1];
+		counter++;
+	}
+
+	for (index2 = 0; string2[index2]; index2++)
+	{
+		ptr[counter] = string2[index2];
+		counter++;
+	}
+
+	ptr[counter] = string2[index2];
+	return (ptr);
+}

0x0B-malloc_free/main.h

@@ -4,5 +4,6 @@
 int _putchar(char c);
 char *create_array(unsigned int, char);
 char *_strdup(char *);
+char *str_concat(char *, char *);
 
 #endif /* _MAIN_H_ */