Differences between C++ 'new' operator and 'malloc()' (NOT a C/C++ question)

NightStrike nightstrike@gmail.com
Fri Jul 6 11:48:00 GMT 2012


On Thu, Jul 5, 2012 at 9:36 AM, Claude SIMON <sc.cygwin.com@zeusw.org> wrote:
> Let's consider a Java native component which only calls a 'malloc(1)'. It
> doesn't even test the returned value (it is usually not a good idea, but
> it doesn't matter here).
>
> This component :
> - compiled with g++ under Linux : works,
> - compiled with g++ under Mac OS : works,
> - compiled with Visual C++ under Windows : works,
> - compiled with g++ under Cygwin : CRASHES !
>
> It crashes as soon the 'malloc(1)' function is called. You don't even have
> the opportunity to test the returned value, nor to use it. It's perhaps a
> Cygwin bug, or perhaps a JVM/JRE/JDK bug ; I don't know and I don't bother
> (but if someone will make some investigation about that, I'm ready to help
> him or her if I can).
>
> When you replace the 'malloc()' by the 'new' operator, then the component
> compiled with g++ under Cygwin works too.


Can you provide a reduced self contained small test case that
demonstrates the problem?  That'll be your fastest path to a
resolution.  It's also the easiest way to explain what you are seeing.

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple



More information about the Cygwin mailing list