C++ : keywords

32 keywords defined by standard C.

auto	double	int	struct
break	else	long	switch
case	enum	register	typedef
char	extern	return	union
const	float	short	unsigned
continue	for	signed	void
default	goto	sizeof	volatile
do	if	static	while

A list of some commonly used extended keywords:

asm	_cs	_ds	_es
_ss	cdecl	far	huge
interrupt	near	pascal

All C (and C++) keywords are lowercase. Also, uppercase and lowercase are
different: else is a keyword; ELSE is not.