Strlen in Malloc

Question

Why does this return no warnings? What is supposed to be wrong with the code?

char *str = malloc(strlen("hello" + 1));
strcpy(str, "hello");

Thanks!

Answer 1

Why would you expect warnings?

The code is broken because you should be doing strlen("hello") + 1, not strlen("hello" + 1) (which is equivalent to strlen("ello")).