Memchr() & Memicmp() Memmove Memcpy() OF C Programs

Program for memcpy() function in C

#include 

#include

#include 

int main()

{

   char str1[10] = "fresh";

   char str2[10] ;

   if (memcpy(str2,str1, strlen(str1)))

   {

      printf("Elements in str1 are copied to str2 .\n");

      printf("str1 = %s\n str2 = %s \n", str1, str2);

   }

   else

     printf("Error while coping str1 into str2.\n");

   return 0;

}

Output

Elements in str1 are copied to str2.
str1 = fresh
str2 = fresh

Program for memmove() function in C

#include 

#include 

int main()

{

  char str1[10] = "fresh";

    printf("str1 before memmove\n");

    printf("str1 = %s\n ", str1);

  if (memmove(str1+2,str1, strlen(str1)))

  {

    printf("Elements in str1 are moved/overlapped on str1.\n");

    printf("str1 = %s \n", str1);

  }

  else

    printf("Error while coping str1 into str2.\n");

  return 0;

}

 Output

str1 before memmove
str1 = fresh
Elements in str1 are moved/overlapped on str1.
str1 = frfresh

Program for memcmp () function in C

#include 

#include 

int main()

{

  char str1[10] = "fresh";

  char str2[10] = "refresh";

  if (!memcmp(str1,str2, 5*sizeof(char)))

    printf("Elements in str1 and str2 are same.\n");

  else

    printf("Elements in str1 and str2 are not same.\n");

  return 0;

}

 Output

Elements in str1 and str2 are not same.

Program for memicmp () function in C

#include 

#include 

int main()

{

  char str1[10] = "fresh";

  char str2[10] = "fresh";

  if (!memicmp(str1,str2, 5*sizeof(char)))

    printf("Elements in str1 and str2 are same.\n");

  else

    printf("Elements in str1 and str2 are not same.\n");

  return 0;

}

 Output

Elements in str1 and str2 are same. Elements in str1 and str2 are same.

Program for memchr() function in C

#include 

#include

#include 

int main ()

{

  char *ptr;

  char string[] = "fresh2refresh";

  ptr = (char *) memchr (string, 'h', strlen(string));

  if (ptr != NULL)

    printf ("character 'h' is found at " \

            "position %d.\n", ptr-string+1);

  else

    printf ("character 'h' is not found.\n");

  return 0;

}

Output

character ‘h’ is found at position 5.