implement most of preprocessor

  - concatenation (##)
  - builtin macros (__FILE__ etc)
  - fails in some edge cases, and code needs cleanup
  - add embedded system include files (stddef.h, stdarg.h for now)
  - can handle stdio.h now

1 files changed, 13 insertions, 1 deletions

diff --git a/test/pp.c b/test/pp.c
index 1c1549f..0aa5287 100644
--- a/test/pp.c
+++ b/test/pp.c
@@ -1,12 +1,24 @@
 
 #include "pp.h"
 #include "pp.h"
+#include <stddef.h>
+#include <stdio.h>
+//
+#define CATl(a) a##bar
+#define CATr(a) foo##a
+#define CAT(a,b) a##b
+
 
 int
 main(void)
 {
+   int CATl(foo);
+   ++foobar;
+   --CATr(bar);
+   CAT(foo,bar) += 3;
    printf("%s %s\n",STR ( ok /1   "\n"n ;.& 
             05.5), STR(ADD(1,2)));
    hi(ADD(Foo, SQR(Bar+1)));
-   printf("%s %s\n", str(Foo), xstr(Foo));
+   int foo123 = 77;
+   printf("%s %s %g\n", str(Foo,5), xstr(Foo), CAT(1.5,e3f) + CAT(7,)-CAT(1,));
 }