strcpy.c


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#include <string.h>
#include <stdio.h>
int main(int argc, char* argv[argc+1]) {
  size_t const len = strlen(argv[0]); // Computes the length
  // Initialized VLA, /*@\C{23}*/
  // terminates array with 0 character
  char name[len+1] = { };
  // Copies the program name
  memcpy(name, argv[0], len);
  if (!strcmp(name, argv[0])) {
    printf("program name \"%s\" successfully copied\n",
           name);
  } else {
    printf("copying %s leads to different string %s\n",
           argv[0], name);
  }
}