C Programming For Dummies, 2nd Edition

Appendix B

Keywords

C Language Keywords, C17 Standard

_Alignas	break	float	signed
_Alignof	case	for	sizeof
_Atomic	char	goto	Static
_Bool	const	if	Struct
_Complex	continue	inline	Switch
_Generic	default	int	Typedef
_Imaginary	do	long	Union
_Noreturn	double	register	unsigned
_Static_assert	else	restrict	void
_Thread_local	enum	return	Volatile
auto	extern	short	While

Deprecated C Language Keywords, No Longer Standard

asm

entry

Fortran

C++ Language Keywords

Asm	dynamic_cast	new	requires	typeid
Bool	export	not	static_cast	typename
Catch	False	operator	template	using
Class	friend	private	this	virtual
Concept	inline	protected	throw	xor
const_cast	mutable	public	true
Delete	namespace	reinterpret_cast	try

• The C17 standard is the current C language standard as this book goes to press. The standard was established in 2017.
• You don’t need to memorize the C++ keywords, and not all of them are listed in this appendix. Still, it’s important to be aware of them. I strongly recommend that you not use any of them as function names or variable names in your code.
• The most frequent C++ reserved word that C programmers tend to use is new. Just don’t use it; use something else, like new_item or newSomething instead.
• The bool keyword in C++ is effectively the same thing as the _Bool keyword in C.