more than 256 Mbyte?

[Jens Mortensen]

Hi,

I am using using the g++ compiler on an IBM-POWER2(160MHz) with 1Gbyte
of memory.  I would like to use this Gbyte of memory, but there seems to
be a limit at 256 Mbyte!

The following test.cc program works fine for x=255, but for x=257, it
fails.

test.cc:
----------------------------
int main()
{
    const int x = 255;
    char* c = new char[x * 1024 * 1024];
}
----------------------------

When I try this test on a GNU/linux-PC, I don't have this problem.

This is my g++ version:

$ g++ -v
Reading specs from
/usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.2.0/2.95/specs
gcc version 2.95 19990728 (release)

Any help would be appreciated.
JJ

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------------------------------------------------