comp.lang.c++ Google Group

Re: I don't have to tell you...

2009-11-28T05:18:14Z

I am not sure I am following your sentence above. Did you mean this?
class BT { public:
void foo() { bar(); }
virtual void bar() { cout << "BT::bar()\n"; }
class T {
T() { foo(); }
This does not present a problem in either specs (existing or desired) as
the derived class' bar() is called in both cases. If you meant anything

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Re: Possible to call a function to "many" times?

2009-11-28T04:07:19Z

carl wrote:
wrong, the [] operator does not create a position, so your overwriting
memory you don't own. use vectorPoint.push_back(point[i] ) instead.
The declaration "VectorType vectorPoint;" will create an *empty* vector,
which means no elements exist in it. vectorPoint[0] will not increase
the size of the vector, so you will (most likely) be referencing

Re: cant get the concept of this result

2009-11-28T03:57:07Z

Also, what is _tmain, and where is the #include <cstdio>?

Re: deducing the return type of a function call...

2009-11-28T03:26:19Z

* James:
As I recall it uses a trick found by a Russian, based on some half-documented
language extension.
Cheers & hth.,
- Alf

Re: Math/CompSci Interview Question - Thoughts?

2009-11-28T03:07:14Z

What solution? The above exhibits undefined behaviour.
Phil

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Re: Article on possible improvements to C++

2009-11-28T00:42:33Z

Nick Keighley <nick_keighley_nos...@hotmail. com> wrote in
Like which? All Boost exceptions I have seen have been derived from
std::exception. But I admit I have used only a few libraries.
In any case if there are other unrelated exception types, it does not
rule out anything, it just makes life a bit harder.

Re: How can I sort this set?

2009-11-27T23:06:07Z

On Fri, 27 Nov 2009 22:47:46 +0100, petertwocakes
Hello,
You mean functor.
No, this is totally unneeded here.
No, the operator should take two "TokenVector const&", and compare them.
Just for other possibilities:
- you can use an ordinary function, and use some library function object
(boost::function or std::pointer_to_binary_functio n) to eg. use it with a

Re: How can I sort this set?

2009-11-27T23:12:51Z

The comparison object of a set compares the actual elements of the set, and
nothing else. Your set contains TokenVector objects, and not ints.
As such the correct prototype for a comparison object that you intend to use
with your actual set should be:
bool operator()(const TokenVector &a, const TokenVector &b) const;

How can I sort this set?

2009-11-27T21:47:46Z

Hi
I have
typedef vector<string> TokenVector
which is an array of string (words) making up a sentence.
For the purposes of my app I need it structured like this, rather than
a single composite string.
then I have
typedef set<TokenVector, compare > TokenVectorSet;
which is a set of such sentences.
I want to sort the set in to alphabetical order, as if I was dealing

Re: Boost unit test?

2009-11-27T21:33:41Z

Read about fixtures or the test initialization function in the boost
unit test
documentation. The examples show what you want.
Thanks this was perfect:
[link]

Re: Automating Serialization?

2009-11-27T21:27:57Z

I don't think it is a specific case.
Yes, and should in my opinion.
I would agree with that except change the word types to system
or product. I think accomplishing that is best done without
using the versioning of the Boost Serialization library.
This reminds me of something in "The Abolition of Man" by