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Article #1754

"Incomplete" functions - should this cause a segmentation fault?

#1754
From: Gordon Joly Statistics UCL
Date: Fri, 17 Mar 1989 13:06
51 lines
2445 bytes
On a SUN-3/160, with g++ 1.34 built with gcc 1.34 (libg++ 1.34).
Config.gcc sun3 (no FPA, SunOS 3.4)

We have noticed that the compiler core dumps when trying to
deal with functions with an incomplete (or missing?) argument list.
(A problem of funtion declaration is mentioned is "known bugs".)

karl:/stats/staff/karl/gordon/c++[9] cat -n hello.cc
     1	#include <stdio.h>
     2	#include <stream.h>
     3	
     4	char* abc(int a)
     5	  {
     6	    return "hello" ;
     7	  }
     8	
     9	
    10	main()
    11	  {
    12	    cout << abc ; // Rubbish
    13	  }
karl:/stats/staff/karl/gordon/c++[10] make -n
g++  -g -v -c hello.cc
g++  -o hello hello.o -lg++ -lm
karl:/stats/staff/karl/gordon/c++[11] make
g++  -g -v -c hello.cc
g++ version 1.34.0
 /stats/staff/karl/gordon/GNU/usr/ucl/lib/gcc-cpp -+ -v -undef -D__GNU__ -D__GNUG__ -Dmc68000 -Dsun -Dunix -D__mc68000__ -D__sun__ -D__unix__ -D__HAVE_68881__ -Dmc68020 hello.cc /tmp/cca00387.cpp
GNU CPP version 1.34
 /stats/staff/karl/gordon/GNU/usr/ucl/lib/gcc-c++ /tmp/cca00387.cpp -quiet -dumpbase hello.cc -noreg -version -G -o /tmp/cca00387.s
GNU C++ version 1.34.0 (68k, MIT syntax) compiled by GNU C version 1.34.
In function int main ():
hello.cc:12: Segmentation violation
Program c++ got fatal signal 11.
*** Error code 1

Stop.


Surface mail: Dr. G.C.Joly, Department of Statistical Science,
      University College London, Gower Street, LONDON WC1E 6BT, U.K.
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Path: arc1-ca.pugleaf.net!utzoo!telly!attcan!uunet!tut.cis.ohio-state.edu!NSS.CS.UCL.AC.UK!gordon%stats.ucl.ac.uk
From: gordon%stats.ucl.ac.uk@NSS.CS.UCL.AC.UK (Gordon Joly Statistics UCL)
Newsgroups: gnu.g++.bug
Subject: "Incomplete" functions - should this cause a segmentation fault?
Message-ID: <8903171719.AA04619@prep.ai.mit.edu>
Date: 17 Mar 89 13:06:09 GMT
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