comp.lang.c++ Google Group

Re: Breakthrough

2012-06-04T12:20:01Z

On Mon, 04 Jun 2012 13:38:47 +0200

Here are timings on mu computer.

bmaxa@maxa:~/jacob/ccl$ time ./cppvec
Sum = 10738138201479754

real 0m0.899s
user 0m0.832s
sys 0m0.064s
bmaxa@maxa:~/jacob/ccl$ time ./cpplist
Sum = 10738138201479754

real 0m7.493s
user 0m7.344s
sys 0m0.136s
bmaxa@maxa:~/jacob/ccl$ time ./testlist

Inheritance from template problem

2012-06-03T18:03:21Z

Hello,

My inheritance problem is my uncle left me $10 million, but to get it
I have to spend the night in an isolated haunted house. My uncle
didn't like me. I think it's a plot to kill me! :o)

Seriously, when I compile the following code, I get the error: "B::i
is not accessible" on the line "f = Tptr->i". It compiles fine if "i"

reduce c++ vector size

2012-06-03T17:34:19Z

Hi,
I wrote a program in which I define a vector of some class objects.
Initially the vector has size and capacity both set to 0.
The moment I add an element to the vector the size is 1 and the capacity
jumps to 32 elements.
This is causing a huge overhead on my program since I need to use many such

Re: Indirection operator and write access

2012-06-03T14:27:54Z

What does "showing write access on x" mean?

You can't overload *. I can't see how x could me modified here, but note
that anything can happen inside the version of operator<<(ostream&,...)
called at that point. Here is an example:

class X { ... };
class Y {
public:
Y(const X & x) { ... }

Re: Indirection operator and write access

2012-06-03T13:31:34Z

You can't overload the operator* for pointers. That's a built-in one.
Once you dereference *x, you get a reference to the object. The pointer
variable does not have any play in dealing with that, so it seems that
the write access to 'x' itself has nothing to do with '*x'.

V
--
I do not respond to top-posted replies, please don't ask

===Welcome to comp.lang.c++! Read this first.

2012-06-03T04:30:11Z

Welcome to comp.lang.c++! Read this first.

This post is intended to give the new reader an introduction to reading
and posting in this newsgroup. We respectfully request that you read
all the way through this post, as it helps make for a more pleasant
and useful group for everyone.

First of all, please keep in mind that comp.lang.c++ is a group for discussion

Access Violation Problem

2012-06-02T20:44:53Z

I have the following code that compiles but produces a "Access
violation reading location..." runtime error when executed. I tried
casting the first statement to (char*), but that produced the same
fault.
I suppose the problem lies with the use of the "const char" in the
parameter declaration, but I've been trying to follow the examples I see

WHAT DO MUSLIMS THINK ABOUT JESUS ?????????

2012-06-02T12:41:51Z

WHAT DO MUSLIMS THINK ABOUT JESUS?
I know that my article is not related to this group ,but it might be
useful.
PLEASE read it
What do Muslims think about Jesus?
Muslims respect and revere Jesus (SAW) and await his Second Coming.
They consider him one of the greatest of God’s messengers to mankind.

Boost function/bind problem

2012-05-31T19:44:47Z

Hello there.
I am trying to use the Boost function type in conjunction with bind, in
order to
homogenise some code.

class C1
{
public:

void
someOp(int i, float f) { /* ... */ } ;

class C2
{
public:

void
otherOp(int i, float f) { /* ... */ } ;

main()
{
typedef boost::function<void (int, float) > F ;

CFP - DEIS2012 - Czech Republic - SDIWC

2012-05-31T08:39:21Z

Dear Colleagues,

We are inviting you to join and participate in the upcoming conference
that will be held in Czech Republic. This will able to build
connections among researchers in the field of digital applications.
Please spend some time to overview the research topics.

Below are the conference information. If you have any questions, you

How can I release the free memory held by boost::unordered_map?

2012-05-31T07:26:54Z

I just add a large of elements and then delete them all in a
boost::unordered_map, then I saw the memory held by this program is
198M(greater than (64+4)*2M) and the unordered_map size is 0.

I test vector, no such problem. Why?

============================== =============

template <int N>

The design of LLVM

2012-05-31T06:54:29Z

Please don't shoot me for posting something that's not 100% on-topic, but
I found this article on the design of LLVM to be interesting:

[link]

Re: Getting the smallest signed type that can represent all thevalues of a given unsigned type

2012-05-31T06:36:27Z

кораблестроение ; отвечаю что яОлег Михайлович Миронов Москвич 1959гр
пожизни обычный ЧМ0шник, ебанутый на голову и шизик !!!образование март
2009 Прохор 2011, кротов николай николаевич кретов евгений владимирович

Memoisation

2012-05-31T06:23:11Z

Dear Group,

I am trying to implement memoisation in C++ for abstract classes such that:

I have an abstract class A with a public `int eval()' method delegating its work to the private purely virtual, customisable, `int reallyEval()' method.

Now, let's say that I have a few concrete classes B1, .., Bn derived from A.

feedback on code design

2012-05-30T09:52:11Z

First time posting here, sorry if i failed :(
So i wanted to write a Hangman game and i started it, as im newbie
programmer it took me several days to track all the bugs etc.
Meanwhile i want to get good habits on designing and i read that
Getters and Setters arent the best way to go for a class design. I