arrays - C++ assignment operator in while -


can explain how piece of code works? assignment operator in while not mistake, did on purpose. if put n values in str1, output n*2-1 stars. in case, output 0 stars.

the code in main is:

char str1[] = ""; char str2[10];  char *p1 = str1; char *p2 = str2;  while(*p2++ = *p1++)     cout << "* ";  return 0;

thanks in advance!

the conditional of while statement can thought of as:

(*p2++ = *p1++) != 0

which can thought of as,

(*p2++ = *p1++), *(p2-1) != 0

since p2 post-incremented in line.

the loop continue until null character string p1 points copied string p2 points to.


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