--- gforth/test/libcc.fs	2007/05/28 09:43:34	1.1
+++ gforth/test/libcc.fs	2007/06/09 15:55:45	1.5
@@ -4,11 +4,44 @@ require libcc.fs
 \c #include <stdlib.h>
 
 c-function strlen strlen a -- n
+cr s\" fooo\0" 2dup dump drop .s strlen cr .s drop cr 
 c-function labs labs n -- n
 
+\c #define _FILE_OFFSET_BITS 64
 \c #include <sys/types.h>
 \c #include <unistd.h>
 c-function dlseek lseek n d n -- d
 
 cr s\" fooo\0" 2dup dump drop .s strlen cr .s drop cr 
 -5 labs .s drop cr
+
+\c #include <stdio.h>
+c-function printf-nr printf a n r -- n
+c-function printf-rn printf a r n -- n
+s\" n=%d r=%f\n\0" drop -5 -0.5e fp@ hex. cr printf-nr . cr
+s\" r=%f n=%d\n\0" drop -0.5e -5 printf-rn . cr
+
+\c #define printfull(s,ull) printf(s,(unsigned long long)ull)
+c-function printfull printfull a n -- n
+s\" ull=%llu\n\0" drop -1 printfull . cr
+s\" ull=%llu r=%f\n\0" drop -1 -0.5e printf-nr . cr
+
+\c #define printfll(s,ll) printf(s,(long long)ll)
+c-function printfll printfll a n -- n
+s\" ll=%lld\n\0" drop -1 printfll . cr
+s\" ll=%lld r=%f\n\0" drop -1 -0.5e printf-nr . cr
+
+\ test calling a C function pointer from Forth
+
+\ first create a C function pointer:
+
+\c typedef long (* func1)(long);
+\c #define labsptr(dummy) ((func1)labs)
+c-function labsptr labsptr -- a
+
+\ now the call
+\c #define call_func1(par1,fptr) ((func1)fptr)(par1)
+c-function call_func1 call_func1 n func -- n
+
+-5 labsptr call_func1 . cr
+