[970929] Can't throw in constructor

[Chip Salzenberg <chip at rio dot atlantic dot net>]

Good news: Debian finally has a glibc 2.0.5c, so I can use
egcs-970929:

 Reading specs from /usr/local/lib/gcc-lib/i486-pc-linux-gnu/egcs-2.90.11/specs
 gcc version egcs-2.90.11 970929 (gcc2-970802 experimental)

 # This directory was configured as follows:
 SRC/configure --host=i486-pc-linux-gnu --program-transform-name=s,^,s, \
   --norecursion 
 #  using "SRC/config/mt-linux"

Bad news:  My exception-in-constructor test case fails.  (It's compiled
with "-g", no optimization, with "-frtti":

-----------------------------------------------------------------------
#include <iostream.h>
#include <sys/types.h>


char x[100];
class Noisy {
  public:
    Noisy() { throw "Aaaaah!"; }

    void * operator new (size_t)
	{ cout << "Noisy::new" << endl; return x; }
    void operator delete (void *, size_t)
	{ cout << "Noisy::delete" << endl; }
};

void
foo()
{
    Noisy *p = 0;
    try {
	p = new Noisy;
	delete p;
    }
    catch (...) {
	cout << "Can't be noisy" << endl;
    }
}

main()
{
    foo();
}
-----------------------------------------------------------------------
Script started on Mon Oct  6 16:28:57 1997
$ gdb ./tt
GDB is free software and you are welcome to distribute copies of it
 under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16.patched (i586-debian-linux), 
Copyright 1996 Free Software Foundation, Inc...
(gdb) run
Starting program: ./tt 
Noisy::new

Program received signal SIGABRT, Aborted.
0x400420a1 in kill ()
Current language:  auto; currently c
(gdb) where
#0  0x400420a1 in kill ()
#1  0x40041ebf in gsignal ()
#2  0x400430ef in abort ()
#3  0x804f465 in copy_reg (reg=16, udata=0xbffffb64, target_udata=0xbffffaf4)
#4  0x804f709 in __throw ()
#5  0x804a180 in foo () at tt.cc:21
#6  0x804a2d8 in main () at tt.cc:31
(gdb) print ((frame_state *)0xbfffb64)->saved[16]
Cannot access memory at address 0xbfffbd0.
(gdb) print ((frame_state *)0xbffffb64)->saved[16]
$1 = 1 '\001'
(gdb) print ((frame_state *)0xbffffaf4)->saved[16]
$2 = 0 '\000'
(gdb) q
The program is running.  Quit anyway (and kill it)? (y or n) y
$ 

Script done on Mon Oct  6 16:30:15 1997
-----------------------------------------------------------------------

-- 
Chip Salzenberg          - a.k.a. -           <chip@pobox.com>
        "He's Mr. Big of 'Big And Tall' fame."  // MST3K