Question

Cannot use/call any library functions.

Write a C function char* my_strcat(char *dest, const char *src) that copies the contest of string src to the end of string dest, assuming that there is enough storage space in dest to accommodate the resulting concatenated string. The function returns dest.

Answer 1

PROGRAM:

#include <stdio.h>
char* my_strcat(char* dest, char* src)
{
int i=0,j=0;
while(dest[i]!='\0')
{
i++;
}
while(src[j]!='\0')
{
dest[i++]=src[j++];
}
return dest;
}
int main()
{
char str1[100];
char str2[100];
char *p;
printf("Enter String1: ");
scanf("%s",str1);
printf("Enter String2: ");
scanf("%s",str2);
p=my_strcat(str1,str2);
printf("After String conacatnation: %s",p);
return 0;
}

SCREENSHOT:

Not L L N 000) } wNO main.c 1 #include <stdio.h> char* my_strcat(char* dest, char* src) 3-{ int i=0,j=0; 5 while(dest[i]!='\0') 6 { i++; 8 9 while(src[j]!='\0') 10 { 11 dest[i++]=src[j++]; 12 } 13 return dest; 14 } 15 int main() 16 { 17 char str1[100]; 18 char str2[100]; char *p; printf("Enter String1: "); 21 scanf("%s", stri); 22 printf("Enter String2: "); 23 scanf("%s", str2); 24 p=my_strcat(str1, str2); 25 printf("After String conacatnation: %s",p); 26 return 0; 27 } 28 19 20 in Enter Stringi: Hello Enter String2: World After String conacatnation: HelloWorld ... Program finished with exit code 0 Press ENTER to exit console. I