Result of calling strcpy is different than expected

Question

#include 
#include 

int main()
{
   char src[]=\"123456\";
   strcpy(src, &src[1]);
   printf(\"Final copied string : %s\\n\", sr         


        

Answer 1

This is undefined behaviour. Use the memmove function instead. memmove is designed to allow overlapping of source and destination buffers.

memmove(src, &src[1], strlen(&src[1]) + 1) ;  // + 1 for copying the terminating zero