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Re: Cannot convert int (aka NULL) to std::vector<double*>::value_type
On Mon, 2013-02-04 at 23:52 -0800, mmcwilli@uvic.ca wrote:
> Hi nick
>
> Thanks nick, really appreciate you taking the time to look into my
> error and finding a fix. I will work on it tomorrow. Could you answer
> one question, is this a compiler bug or a standards conformance issue?
> Thanks a tonne for your help!
You're welcome. Unfortunately I don't know whether this is a bug or
expected w/ the newer standard.
I tried the alternatives in my previous e-mail based on the error
message from GCC:
error: invalid conversion from 'int' to
'std::vector<double*>::value_type {aka double*}'
So clearly it sees 'NULL' as an int, which is understandable since it's
not an actual type (that's what nullptr addressed) and is usually a
#define for 0.
I'm guessing using anything that's implicitly convertible to double* and
has a value of 0 should work for you. That being said, qualifying NULL
as a double* also works:
vector<double*> myVect(1,static_cast<double*>(NULL) );
Beyond whether this is a bug or not, I suggest using nullptr as that's
the proper representation of "NULL" going forward.
Nick