Re: [Mingw-users] STL and DLLs = Memory leak

[Stephen M. W. <ste...@cr...>]

On June 25, 2002 07:55 am, Thomas Pfaff wrote:
>
> I had no problems with gcc 2.95.3 to define __USE_MALLOC. Couldn't
> see any memory leaks. I have attached my Makefile.

The default allocator in 2.95 was the malloc_alloc allocator.  The 
default 3.1 allocator is a more sophisticated beast that conforms to 
the standard (ie. uses 'new' to allocate memory) and has mutex guards 
against concurrent access.

If you build your application using 2.95 and __USE_MALLOC, great, 
everything matches.  If you build with the default 3.1 and define 
__USE_MALLOC in your code, you will likely run into trouble since your 
code doesn't match what's in the library.

The __USE_MALLOC option is a library build-time option, not a user 
compile-time option.

See http://gcc.gnu.org/onlinedocs/libstdc++/23_containers/howto.html#3 
for more.

-- 
Stephen M. Webb