extern "C" bug

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1 total messages Started by Gregg Whitcomb Fri, 19 May 1989 16:56

#2016

Author: Gregg Whitcomb
Date: Fri, 19 May 1989 16:56

51 lines
1206 bytes

version: g++ 1.35.0
config: vax (ultrix 3.0)

problem: warning message "empty declaration" for structures
declared after a typedef.  Works okay if the typedef is moved after
the struct declaration.  Both test.cc and test.c run correctly regardless
of the error.

---------------------------------------

/* test.h */
typedef struct a A;
struct a 
   {
   int x;
   int y;
   int z;
   };


/* test.cc (warning message when compiled) */
#include <stream.h>
extern "C" 
{
#include "test.h"
}

main()
{
   struct a s;

   s.x  = 1;
   cout << s.x << "\n";
}


/* test.c  (works fine) */
#include <stdio.h>
#include "test.h"

main()
{
   struct a s;

   s.x  = 1;
   printf("%d\n",s.x);
}
---------------------------------------

-Gregg Whitcomb		whitcomb@ic.berkeley.edu

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