can't modify char* - Memory access violation

Question

Why does it say \"Memory access violation\"?

  char* str = \"HelloGuys\";
  int len = strlen(str);
  for (int i=0; i<(len/2); ++i){
        char t = str[l         


        

Answer 1

String literals are stored in read only section of memory. Any attempt to modify the contents of a string literal invokes Undefined Behaviour (segmentation fault on most implementations).

Use an array of characters rather

char str[] = "HelloGuys";