Re: Problem with g++ in linux

[Paul Pluzhnikov]

Robert Heller <heller@deepsoft.com> writes:

> Consider this code (which contains a bug!):
> 
> char *pointer;
> 
> pointer = new[strlen("Hello World")];
> strcpy(pointer,"Hello World");
> 
> This code will likely work just fine on a big-endian system (such as a
> Sparc), but will in fact trash the heap on a little-endian system (such
> as a ix86).

This code will trash heap on a big-endian system to *exactly*
the same extent as on a little-endian one.

In fact, this is one example where trashing heap will almost never
result in any visible effect (crash), because you are copying 12
bytes into 11-byte block, but most new/malloc implementations will
*actually* allocate 16 bytes.

Cheers,
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