strcpy c implementation
#include <stdio.h>
// Function to implement strcpy() function
char* strcpy(char* destination, const char* source)
{
// return if no memory is allocated to the destination
if (destination == NULL)
return NULL;
// take a pointer pointing to the beginning of destination string
char *ptr = destination;
// copy the C-string pointed by source into the array
// pointed by destination
while (*source != ' ')
{
*destination = *source;
destination++;
source++;
}
// include the terminating null character
*destination = ' ';
// destination is returned by standard strcpy()
return ptr;
}
// Implement strcpy function in C
int main(void)
{
char source[] = "Techie Delight";
char destination[25];
printf("%sn", strcpy(destination, source));
return 0;
}