Message-ID:	<3994B1F5.32956831@addr.com>
From:	Ardy Falls <ardy AT addr DOT com>
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Newsgroups:	comp.os.msdos.djgpp
Subject:	DXE Question
Lines:	57
Date:	Fri, 11 Aug 2000 19:09:57 -0700
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Hi I'm trying to make a dxe function that passes pointers to other
functions within that .o file.
here is the source code

these to files are compiled this way

gxx -o dxetest.exe dxetest.c
gxx -c test.c test.o
dxegen test.dxe _Funct_Init test.o

**************dxetest.c***********
#include <sys/dxe.h>

static int (*add)(int a, int b);
static int (*sub)(int a, int b);
static void *(*Funct_Init)(char *FunctName);
int main(void)
{
  printf("loading test.dxe...\n");
  Funct_Init = _dxe_load("test.dxe");
  if (Funct_Init == 0) {
    printf("Cannot load test.dxe\n");
    return 1;
  }
  add=Funct_Init("Add");
  sub=Funct_Init("Sub");
  if (sub == 0) {
    printf("Error in test.dxe\n");
    return 1;
  }
  if (add == 0) {
    printf("Error in test.dxe\n");
    return 1;
  }
  printf("Okay, 3 + 4 = %d\n", add(3,4));
  printf("Okay, 3 - 4 = %d\n", sub(3,4));
  return 0;
}

***************************test.c*************************8
static int add(int a,int b) {
   return (a+b);
}
static int sub(int a,int b)
{
   return a-b;
}
void *Funct_Init(char *FunctName)
{
   if(FunctName=="Add") return((int(*)(int a,int b))add);
   if(FunctName=="Sub") return((int(*)(int a,int b))sub);
}

            Thnaks a million,
                    Ardy
            http://www.addr.com/~ardy/

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