tinycc/tests/tests2/64_macro_nesting.c

#include <stdio.h>	// printf()

#define CAT2(a,b) a##b
#define CAT(a,b) CAT2(a,b)
#define AB(x) CAT(x,y)

int main(void)
{
  int xy = 42;
  printf("%d\n", CAT(A,B)(x));
  return 0;
}
Turn on a implicit-function-declaration warning by default. A non declared function leads to a seriuos problems. And while gcc don't turn this warning on lets tcc do it. This warning can be turned off by -Wno-implicit-function-declaration option. And autor must explicitly do this if program must be compiled with this warning off. 2015-03-03 16:32:25 +03:00			`#include <stdio.h> // printf()`

Add new tests for macro nesting 2014-04-07 19:30:57 +04:00			`#define CAT2(a,b) a##b`
			`#define CAT(a,b) CAT2(a,b)`
			`#define AB(x) CAT(x,y)`

			`int main(void)`
			`{`
			`int xy = 42;`
			`printf("%d\n", CAT(A,B)(x));`
			`return 0;`
			`}`