Operator new doesnt work

Pavel Mityukov

Prodigy 185 points

Other Parts Discussed in Thread: TMS320C6727B

I want dynamically to create an object such as

cMyClass* pMyClass;

pMyClass = new cMyClass();

but after this pMyClass = 0x00000000;

WHY? Where is the trable?

over 16 years ago

0 Brad Griffis over 16 years ago

TI__Guru*** 125430 points

I'm not a C++ guy, but perhaps you don't have a heap defined (or too small)?

0 Pavel Mityukov over 16 years ago in reply to Brad Griffis

Prodigy 185 points

Heap defined 0x4000

Stack defined 0x4000

Is it not enought?

I try to increase heap and stack but result is the same.

DSP - TMS320C6727B.

Header:

class cMyClass
{
cMyClass();
~cMyClass();
float Temp1[10000];
float Temp2[10000];
}

0 Brad Griffis over 16 years ago in reply to Pavel Mityukov

TI__Guru*** 125430 points

Is this a BIOS project? If so, how are you setting the heap size. There are multiple ways to do it and I think your value can get overridden if you do it through the project file rather than through the BIOS config file.

0 Pavel Mityukov over 16 years ago in reply to Brad Griffis

Prodigy 185 points

This is not DSPBIOS project.

The heap is set by the .cmd (linker command file).

Problem is actually...

0 George Mock over 16 years ago in reply to Pavel Mityukov

TI__Guru**** 251650 points

That class has two giant arrays in it. The total size of that class is 80000 (0x13880) bytes. You need a bigger heap, or a smaller class.

Thanks and regards,

-George

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Operator new doesnt work