Preprocessor Boolean operations

Preprocessor macros that return tokens 0 or 1 according to the evaluation of their arguments. More...

Collaboration diagram for Preprocessor Boolean operations:

Defines
#define	P99_IS_EQ(_0, _1)   P99_HAS_COMMA(P99_PASTE4(P00_IS_, _0, _EQ_, _1)())
	Determine if the two tokens _0 and _1 are equal.
#define	P99_IS_GE(_0, _1)   P00_GE( P99_IS_EQ_0(_1), P99_CHS(_0, P99_SELS(_1, P00_ALL_ZEROES()), P00_ALL_ONES()))
	a decimal greater or equal operator
#define	P99_IS_GT(_0, _1)   P99_IS_LT(_1, _0)
	a decimal greater than operator
#define	P99_IS_LE(_0, _1)   P99_IS_GE(_1, _0)
	a decimal less or equal operator
#define	P99_IS_LT(_0, _1)   P00_LT( P99_IS_EQ_0(_1), P99_CHS(_0, P99_SELS(_1, P00_ALL_ONES()), P00_ALL_ZEROES()))
	a decimal less than operator
#define	P99_IS_VOID(...)   P00_IS_VOID(P99_IS_EMPTY(__VA_ARGS__), P99_IS_EQ_void(__VA_ARGS__))
	Test whether or not its argument is empty or if it consists of the word void.
#define	P99_LOGIC_AND(A, B)   P00_LOGIC_AND(P99_LOGIC_EVAL(A), P99_LOGIC_EVAL(B))
	Do a logical and of the arguments.
#define	P99_LOGIC_EVAL(_0)   P00_EVAL_0(P99_IS_EMPTY(_0), P99_IS_EQ_0(_0))
	Do a evaluation of the argument.
#define	P99_LOGIC_NOT(A)   P00_NOT_0(P99_IS_EMPTY(_0), P99_IS_EQ_0(_0))
	Do a logical negation of the argument.
#define	P99_LOGIC_OR(A, B)   P00_LOGIC_OR(P99_LOGIC_EVAL(A), P99_LOGIC_EVAL(B))
	Do a logical inclusive or of the arguments.
#define	P99_LOGIC_XOR(A, B)   P99_IS_EQ(P99_LOGIC_NOT(A), P99_LOGIC_EVAL(B))
	Do a logical exclusive or of the arguments.

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Detailed Description

Preprocessor macros that return tokens 0 or 1 according to the evaluation of their arguments.