c wide chars

I’m having an unlucky streak at the moment I’ve found this bug with the c compiler (5.70)

wchar_t* str = L"Hello";

printf(“%ls\n”,str);

doesn’t print out “Hello”.

From the disassembly Hello is correctly stored as 4 byte wchar_ts. The compiler doesn’t fault str being a wchar_t* – as it does if I just use %s.

If I make str a normal char* (and remove the L from in front of Hello) I get a warning from the compiler and it prints Hello if I ignore the warning.

This is probably related to one of the C99 non-compliances mentioned on page 80 of the C,C++ book. Assuming of course that the manual is kept up to date.

‘Wide character library support (using wchar.h and wctype.h header files)’

Though I was using neither header.