Why new(nothrow) type[length] is still throwing exception?

[srikrish85]

Hi,
Good day. Btw I am using g++-4.9 in linux mint and the following code

buff = new(nothrow) int[space_needed];
if(buff==nullptr)
{
       //My code to handle error
}

still throws std::bad_array_new_length. But if nothrow parameter is passed to new, the exception should not be thrown by new am I right? This is still weird.

Thanks in advance.

[laserlight]

It does look weird to me, but I have never bothered with nothrow new. Why not just write:

try
{
    buff = new int[space_needed];
}
catch (const std::bad_alloc& e)
{
    // My code to handle error
}

std::bad_array_new_length is derived from std::bad_alloc, so the above would handle it too.

Then again, why are you not using an existing container class?

[srikrish85]

Hi,
Thanks for the reply. Yeah I was just learning this new (nothrow) functionality. I always handle the respective exceptions and I love the STL vector and array classes.
I was just meddling around. It seems weired when it throws exception. I think this has to do something with the g++ compiler. Anyways thank you.