putwchar
(void) putwchar(wc);
(void) putwchar(c);
(void) putwchar(c);
(void) putwchar(c);
(void) putwchar(c);
(void) putwchar(wc);
(void) putwchar(wc);
(void) putwchar(*cp++);
(void) putwchar(*cp++);
(void) putwchar('\n');
(void) putwchar('\n');
(void) putwchar(pcode);
putwchar(' ');
putwchar(L' ');
putwchar(L'\n');
putwchar(c);
(void) putwchar(ch);
(void) putwchar(wc);
(void) putwchar(ch);
(void) putwchar(ch);
(void) putwchar(ch);
(void) putwchar(ch);
(void) putwchar(ch);
(void) putwchar(L'\n');
(void) putwchar(L'\r');
(void) putwchar(*cp);
(void) putwchar(L'\r');
(void) putwchar(*cp == L'_' ? L' ' : *cp);
(void) putwchar(L'\r');
(void) putwchar(*cp == L'_' ? L' ' : *cp);
(void) putwchar(*cp);
(void) putwchar(L'\n');
(void) putwchar(c);
extern wint_t putwchar(wint_t);
using std::putwchar;
TEST_WIDE_STD(stdout, putwchar(L'c'));