K & R C Programs Exercise 5-3.

K and R C, Solution to Exercise 5-3:
K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language (2nd Edition). You can learn and solve K&R C Programs Exercise.
C Program to concatenate the two strings using the pointers
This program shows, how the standard library function “strcat” works!. Read more about C Programming Language .

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#include <stdio.h>
/* str_cat: concatenate t to the end of s: pointer version */
void str_cat(char *s, char *t)
/* run through the destination string until we point at the terminating '' */
while('' != *s)


/* now copy until we run out of string to copy */
while('' != (*s = *t))

int main(void)
char Str1[8192] ;
char Str2[8192] ;
printf("n Enter the first string: n");
printf("n Enter the second string: n");
printf("String one is (%s)n", Str1);
printf("String two is (%s)n", Str2);

str_cat(Str1, Str2);
printf("The combined string is (%s)n", Str1);

return 0;

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