Path: utzoo!telly!ddsw1!mcdchg!rutgers!labrea!decwrl!armada!becher
From: becher@armada.UUCP (Jonathan D. Becher)
Newsgroups: gnu.g++.bug
Subject: G++ doesn't handle pointers to functions
Message-ID: <68@armada.UUCP>
Date: 11 Oct 88 21:45:49 GMT
Organization: I have no organization (look at my desk)
Lines: 37

The following program compiles with gcc but not with g++.
It seems as if g++ doesn't understand formal parameters that
are pointers to functions.
If anyone can think of a way around this bug (or explain to me 
why it isn't one), please let me know.
I can't live without pointers to functions :->

Program:

#include <stdio.h>
doSomething()
{
    printf("I did\n");
}

doThis(int (*f)())
{
    f();
}

main()
{
    doThis(doSomething);
}

Compilation:

g++ version 1.25.0
/usr/local/lib/gcc-cpp+ -v -undef -D__GNU__ -D__GNUG__ -Dvax -Dunix t.cc /tmp/cc011037.cpp
/usr/local/lib/gcc-c++ /tmp/cc011037.cpp -quiet -dumpbase t.cc -noreg -version -o /tmp/cc011037.s
GNU C++ version 1.25.0 (vax) compiled by GNU C version 1.25.
t.cc:9: undeclared variable `f' (first use here)


=====
Jon Becher
becher@cs.duke.edu          -OR-           argosy!becher@decwrl.dec.com