\ test libcc.fs C interface \ Copyright (C) 2007 Free Software Foundation, Inc. \ This file is part of Gforth. \ Gforth is free software; you can redistribute it and/or \ modify it under the terms of the GNU General Public License \ as published by the Free Software Foundation, either version 3 \ of the License, or (at your option) any later version. \ This program is distributed in the hope that it will be useful, \ but WITHOUT ANY WARRANTY; without even the implied warranty of \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the \ GNU General Public License for more details. \ You should have received a copy of the GNU General Public License \ along with this program. If not, see http://www.gnu.org/licenses/. require libcc.fs \c #include \c #include 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 \c #include 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 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