tinycc/tests/pp/pp-counter.c

X1 __COUNTER__
X2 __COUNTER__
#if __COUNTER__
X3 __COUNTER__
#endif
#define pass(x) x
#define a x __COUNTER__ y
#define a2 pass(__COUNTER__)
#define f(c) c __COUNTER__
#define apply(d) d d __COUNTER__ x2 f(d) y2 __COUNTER__
#define _paste(a,b) a ## b
#define paste(a,b) _paste(a,b)
#define _paste3(a,b,c) a ## b ## c
#define doublepaste(a,b) _paste3(a,b,b)
#define str(x) #x
X4 a
X5 f(a)
X6 f(b)
X7 f(__COUNTER__)
X8 apply(a)
X9 apply(f(a))
X10 apply(__COUNTER__)
X11 apply(a2)
X12 str(__COUNTER__)
X13 paste(x,__COUNTER__)
X14 _paste(x,__COUNTER__)
X15 doublepaste(x,__COUNTER__)
tccpp: Implement __COUNTER__ This requires one more change in how macro arguments are expanded: the standard requires that macro args are expanded before substituting into the replacement list. This implies expanding them only once even when they occur multiple times in the list. TCC expanded them repeatedly in that case. Without __COUNTER__ that's harmless. So, simply always expand arguments (when used without # and ##) once and store the resulting tokens. 2017-07-09 06:30:47 +03:00			`X1 __COUNTER__`
			`X2 __COUNTER__`
			`#if __COUNTER__`
			`X3 __COUNTER__`
			`#endif`
			`#define pass(x) x`
			`#define a x __COUNTER__ y`
			`#define a2 pass(__COUNTER__)`
			`#define f(c) c __COUNTER__`
			`#define apply(d) d d __COUNTER__ x2 f(d) y2 __COUNTER__`
			`#define _paste(a,b) a ## b`
			`#define paste(a,b) _paste(a,b)`
			`#define _paste3(a,b,c) a ## b ## c`
			`#define doublepaste(a,b) _paste3(a,b,b)`
			`#define str(x) #x`
			`X4 a`
			`X5 f(a)`
			`X6 f(b)`
			`X7 f(__COUNTER__)`
			`X8 apply(a)`
			`X9 apply(f(a))`
			`X10 apply(__COUNTER__)`
			`X11 apply(a2)`
			`X12 str(__COUNTER__)`
			`X13 paste(x,__COUNTER__)`
			`X14 _paste(x,__COUNTER__)`
			`X15 doublepaste(x,__COUNTER__)`