code: regress

ref: f76209e01bf9954bd50a84caa02c8883cab1e04a
dir: /cmd/cpp/ncat.test/

View raw version 
#define NCAT(a)	foo ## a
NCAT(bar)

#define XCAT(a)	## a
foo XCAT(bar)

#define CAT3(foo)	a##foo##b
CAT3(blah)