comp.lang.c++ Google Group

How to pass user input from gtk to a function ?

2013-05-20T22:55:00Z

i want to pass a user input from gtk input box to a function ... i made code below but i had segmentation errors ...so after looking it up i discovred that the line -> "g_signal_connect(but,"clicked ",G_CALLBACK(encode(tx1,tx2)), NULL);"
doesnt make a sense so can you help me do it .

this is program source =>

C++ Interview Questions with Solutions: Including C++11 by Dr Lin Quan

2013-05-20T19:49:25Z

[link]

This book contains more than 200 C++ questions most frequently asked in technical interviews @top-notch software companies like Google, Microsoft, Amazon and Facebook. Detailed solutions are provided for all of these, including C++11.

String building

2013-05-19T21:01:17Z

I have this class:

class failure : public ::std::exception {
::std::string whatStr;

public:
explicit failure (::std::string what_) : whatStr(::std::move(what_))
{}

~failure () throw()
{}

char const* what () const throw()
{ return whatStr.c_str(); }

template <class T>

Shared value for a member in all instances of a class?

2013-05-19T17:05:05Z

Hi again,

I've some classes with members that need to have a pointer to a GUI control.

However, the same member will have the same pointer in all instances of the class. I mean, member 'm_Temperature' from class 'CTown' will have the same value for its GUI control pointer in all instances of the class 'CTown'.

Parsing response coming from server

2013-05-18T16:30:00Z

I am getting below response from server -

Main stream options:
EncType1=H.264
Resolution1=704*576
KeyInterval1=50
FrameRate1=25
BitflowType1=VBR
NormalBitrate1=2048

Now I need to parse the parameter and its value, I have list of parameter in client, I just need the value of the parameter.

address of array at index

2013-05-18T06:58:48Z

hello group,

i use the function std::inner_product(&arya[0], &arya[4], &aryb[0],
0.0f) with the c-style and/or c++11-style array. does the compiler set
the addresses at compile time or is there a runtime overhead to get the
addresses of array indices?

thanks & cheers, chris

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2013-05-17T05:28:00Z

Find & hire affordable efreelancers, web designers,
engineers. Post freelance jobs, projects
join Today at
[link]

can't convert from type A* to type B*

2013-05-17T03:43:28Z

I need to change DMapEntry::pData from a char* to a class DMapData that contains the original pointer but still be able to refer to &pData[offset] in DMapEntry without changing it. Is this possible?

class DMapData {
char* pData;
public:
char* operator->() { return pData; }
char operator[](size_t offset) { return pData[offset]; }

Advice on an approach to a problem

2013-05-16T11:36:43Z

I make great use of a 'C' program written by someone else. It works
invisibly but creates files named by itself. I would like to grant the user
the option to create their own filenames and the paths for the created
files.

My question is in which environment to tackle this: C or C++?
I have not programmed for some time but keep up to date as best I can. I

c++11 std::array init

2013-05-16T07:02:43Z

hello group,

why can i initialize a local std::array in this way:

std::array<float, 3> locvar{1.0f, 2.0f, 3.0f};

but as member "only" in this way:

std::array<float, 3> member{{1.0f, 2.0f, 3.0f}};

i use mingw g++ 4.8.0 (32 bit).

thanks a lot, chris

Immediate Position:::Business Analyst With BI EXP::::At Houston, TX

2013-05-15T21:39:58Z

Hi,

This is Girish, - Recruitment and Resources from SancroSoft USA Inc.

We have an urgent requirement as follows:

Please respond with resumes in MS-Word Format with the following details toGir...@sancrosoftusa.com

Full Name :
Location :
Contact Number :
Email :
Availability :

OT: Comeau Compiler?

2013-05-15T03:46:20Z

Sorry for the OT fodder. Google is not being very helpful....

Does anyone know if the Comeau Compiler is still available? Are they
out of business?

It appears the site (comeaucomputing.com) has been down since [at
least] December 2012 ([link]
+#Dead.3F).

Temporary Object

2013-05-15T01:25:16Z

Assuming we have class C defined as:

class C {
public:
int x, y;
C operator++() { ++x, ++y; return *this; }

So the following line is legal since C is a user defined type:

++C();

But could any one tell me why the following codes are illegal:

void foo(C &c, int val) {
printf("%d, %d\n", c.x, c.y);

Available C++ Libraries FAQ

2013-05-14T22:19:13Z

Available C++ Libraries FAQ

URL: [link]

This is a searchable list of libraries and utilities (both free
and commercial) available to C++ programmers.

If you know of a library which is not in the list, why not fill
in the form at [link]

ssl proxy server

2013-05-14T12:46:16Z

ssl proxy server

[link]

Ask for program

2013-05-14T01:50:10Z

Who have c++ program that include string,pointer and 2D array?

Re: Looking for intuitive explanation of complex template class!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2013-05-13T20:08:13Z

What seems to be the stumbling point?

And what book (or books) are you reading that doesn't (don't) explain at
least some of the elements of this declaration that you find puzzling?
Please post the titles and authors so we could include them in the list
of books to avoid. Thanks!

I'm amazed at them too!

HP Pavilion 20-b110z All in One PC an Addition of High Performance technology with simple setup and space saving

2013-05-13T16:14:09Z

HP Pavilion 20-b110z is a new addition in the computer technology. It is designed for combining high performance and enhanced media technology for simple setup and space saving. You can now benefit from fast, fluid performance and enriched multimedia with our newly designed HP Pavilion 20 All-in-One Desktop. Control your music, photos and videos remotely, and save space in style with the slim design and one-wire setup. For more details please visit Computersspecs.com

Effective Coding Interviews

2013-05-13T16:01:44Z

Effective Coding Interviews: Problems and Solutions by Jian Lee

[link]

Book Description

This book grew out of 10+ years of coding interviews questions frequently asked in interviews @Google, Amazon, Microsoft, Apple, Facebook and similar top technical companies.

C++/C# Developer Internship - opportunity in London

2013-05-13T15:05:08Z

If you’re looking for an opportunity to work for an established and growing proprietary trading firm then look no further!

Who is Tibra?

Tibra Capital is a global financial markets trading company. Our focus is on systematic trading and arbitrage across multiple asset classes – namely equities, fixed interest securities, FX, commodities and related derivatives across the globe.

Pure virtual accessors?

2013-05-12T15:55:11Z

Hi,

In order to automate the document management in my applications (or at least minimizing the coding effort), I'm planning to base the document design on an abstract class which has a pure virtual getter, a pure virtual setter, a pure virtual function for saving the item into a file, a pure virtual function for reading it from the file, as well as any other helpful functions (such as automatically flagging the document as "dirty" when the value has changed by calling the setter).

Overloading string literal

2013-05-12T14:50:57Z

Suppose: int Buffer::Put(const char *s);
Where: Put() has to find the length of 's' by strlen().
I would like to have: Put("Header Tag...") where sizeof("Header Tag...") -
1 is known at compile-time.
Macro is acceptable, but must report error if 's' is not string literal:
sizeof(s) yield size of const char*, which is not length of string.

enums and signed/unsigned

2013-05-12T14:50:47Z

The following code generates a warning about an singned/unsigned integer
comparison. I don't understand why.

typedef enum
{ TATTR_NONE = 0x00U
, TATTR_SONG = 0x01U
, TATTR_PLAYLIST = 0x02U
, TATTR_INVALID = 0x08U
, TATTR_WRITABLE = 0x10U

inline static ATTRIBUTES operator|(ATTRIBUTES l, ATTRIBUTES r) \

Seek for help..linked list..urgent!!!

2013-05-12T09:11:38Z

I 'm C++ programming beginner..I need someone help me ..
There is error "expected primary-expression before "template""..I 'm really don't know how to fix it..my compiler is Dev C++..pls giv me a favor..
Thanks for helping...

using namespace std;

fstream fp; // fstream provides an interface to read and write data from files as input/output streams.

C++14 draft?

2013-05-11T18:13:56Z

Does anyone know if there are any draft versions of C++14 floating around?

Thanks in advance,
Rui Maciel

Donald Trump and his phalus n Chicago

2013-05-11T10:01:51Z

Now THAT is a man with no common sense. You didn't make me a "job", bitch.
Donald Trump sucks, and I suck to say that. With all your money, why didn't you
do anything good?

no subject

2013-05-11T09:31:25Z

I am "socially lazy". I don't accept spiel. Hence I am lonely. No one to talk
to. At every "job interview". well c'mon, there are no jobs unless ...
apparently donald trump's kid got to bore. I'm gonna lose? What did I do so
wrong? (Those were questions to Mrs. Evanka). I mean, how is it that you don't

?????????? WHY DID PROPHET MUHAMMAD MARRY AISHA THE YOUNG GIRL

2013-05-10T19:43:00Z

WHY DID PROPHET MUHAMMAD MARRY AISHA THE YOUNG GIRL?

This is an important book talks about a common issue misunderstood but
misused by lots of thinkers and orientalists. It is “Why did Prophet
Muhammad marry Aisha the young girl?” The author shows the reason
behind their discussion. They want to distort the picture of Prophet

Ignore - Testing new google groups interface.

2013-05-06T22:20:17Z

This is a column longer than 80 characters. xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx

Gateway Introduces Powerful New FX Series Desktops

2013-05-03T17:47:39Z

Gateway unveiled a new powerful FX Series desktop computer for extreme gaming, graphic-intensive multimedia applications.
The FX7020 is a value-based gaming power house costing close to $760 less than comparable systems. The high-performance FX7020 brings several new leading technologies to the FX line, including NVIDIA GeForce 8800GT technology for powerful, elegant and super-rich graphics for games and other graphics-intensive applications. For more detail visit ComputersSpecs.com

New Book on The Boost C++ Libraries: Generic Programming by Sergei Nakariakov

2013-05-03T13:42:59Z

Hi All,

New Book on The Boost C++ Libraries: Generic Programming by Sergei Nakariakov
([link])

This book covers 24 Boost C++ Libraries:
1 Type Traits

BOOST_CHECK_TYPE
add_const
add_lvalue_reference
add_pointer
add_reference

'auto' and const references

2013-05-03T13:16:37Z

Let's say that a function returns a const reference. If I say this:

auto x = thatFunction();

what would the type of 'x' be? Will it be a const reference, thus
eliding copying, or will a copy be made?

Is there any difference to these:

auto& x = thatFunction();

const auto& x = thatFunction();

Why are class static functions not in the scope of the class?

2013-05-03T05:01:23Z

Hello. Please see the following code:

struct A { static int i ; } ;
int A::* ip = & A::i ;

I get the following errors with GCC 4.7.3 and Clang 3.2:

GCC: error: cannot convert ‘int*’ to ‘int A::*’ in initialization

Clang: error: cannot initialize a variable of type 'int A::*' with an rvalue of type 'int *'

Re: C++11 Clause 12.7 paragraph 3

2013-05-02T17:15:15Z

jabel...@gmail.com skrev 2013-05-02 16:29:

Yes.

The example is mostly about virtual inheritance and the problem is that
both C and D are derived from A, but there will still only be one A in a
complete E object.

Until both C and D are fully constructed, the compiler isn't required to
know how to get a pointer to the A base class of E (and even then it's

???????? Did Muhammad Author the Quran

2013-05-02T11:10:41Z

DID MUHAMMAD AUTHOR THE QURAN?

Did Muhammad Author the Quran?

Who authored the Quran? Someone must have produced it! After all, how
many desert men have stood up in the history of man and given the
world a book like the Quran? The book has amazing details of past
nations, prophets, and religions as well as accurate scientific

Test if const_iterator may be dereferenced - with no direct access to original vector.

2013-05-01T20:57:36Z

What does one do in this situation:

...
Glib::ustring::const_iterator icc;
...
icc = _spans[lastspan].input_stream_ first_character;
...
// need a test here to see if the next line is safe
if(*icc){

In the textbook examples one has both the vector and the iterator, so

To go with Go or C/C++?

2013-05-01T14:05:35Z

Don't worry, this is not about some religious language war. I'm just looking for some advice from some C/C++ people who can judge better than me since my experience in C/C++ is very limited. I have been developing 10 years with Smalltalk and 10 years with Java. I did some C++ during my studies for my thesis, that's all.

Raw pointers not evil after all?

2013-05-01T07:19:20Z

Hi.

I saw this:

[link]

--
"You should use smart pointers careful. They are not the silver bullet
when considering memory management. Circular references are still an
issue.

ostringstream Question

2013-04-30T23:49:39Z

How can I clear/reset/initialize an ostringstream object? I've tried
both clear() and flush() calls to reset an object I've used (so that I
can reuse it), but neither works: subsequent uses only append to the
object. Please advise. TIA

When did the bool type make it into the language?

2013-04-29T21:31:54Z

Trivial argument at work. My cooworker claims that Windows invented the
BOOL type before C++ had a bool type. We're bored.

When did bool make it's way into C or into C++ if not from the beginning?

Signature of a template method that returns a nested template type gives compile errors

2013-04-29T16:41:17Z

I have template class with a nested template class like this

#include <utility>
template<typename K> class Tree23 {

public:
template<typename Key> class Node {
private:
friend class Tree23<K>;
// snip . . .
};

International Workshop on OpenMP 2013 - extended submission deadline - May 10, 2013

2013-04-29T15:00:14Z

CALL FOR PAPERS: extended submission deadline May 10, 2013

9th International Workshop on OpenMP
IWOMP 2013
Sept 16-18, 2013
Canberra, Australia
[link]

lambda recursion

2013-04-28T16:00:07Z

hello group,

can a lambda function call itself for recursion purposes? thanks for
answering!

cheers, chris

Compilation of Awkward Syntax

2013-04-27T12:58:11Z

I've almost finished teaching myself C++, but there's one last step I
have to take. I need to teach myself all the situations that require
one to use a strange looking combination of operators.

One example of a strange looking combination of operators that I
managed to work through is

tmp=(Node<int>*)ptr,

stringstream Problems

2013-04-26T22:52:10Z

I am trying to use stringstreams to parse some complex data. In the
code below, myTest is a string that contains int (9), char ('M'),
string ("45-49") and
string (" Male Age Group 45-49") data fields, and I can't get the
code to work. Perhaps there's an option to set or function to call, but

Best way to access methods of Objects and its sub-Objects

2013-04-26T15:47:45Z

Hi All,
I was always unsure as how to deal with cases where one has to access methods of objects contained with in the class. Basically, if we have a complex system as a car, where things can be abstracted in several classes, what is the ideal way to access one/several methods of an object contained in the class, which inturn contain additional classes ?

const defined as class member in another module

2013-04-25T22:34:06Z

I need to define the size of an array at compile time.

The size I need to use is a static constant unsigned long which is a
public class member in another library.

The compiler complains that "expected constant size"

If I try to use keyword extern, it compains that it is a class member
and I cannot use keyword extern on it.

according to MS, stricmp is deprecated

2013-04-25T20:32:53Z

According to Microsoft Visual C++ 2005, stricmp
is deprecated and they want us to use _stricmp.

Does anyone know why?

Does anyone recommend a good replacement?

Thanks,
Lynn McGuire

const local vs. member

2013-04-25T11:43:31Z

hello group,

what do you think/know is faster:

Matrix& Matrix::Translate(GLfloat x, GLfloat y, GLfloat z)
{
const std::array<GLfloat, 16> translate =
{
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
x, y, z, 1.0f
};

return *this *= translate;

or to use a second std::array<GLfloat, 16> member, clear it every call

Why does this incorrect CRTP static_cast compile?

2013-04-25T03:18:27Z

Hello Group!

The Wikipedia CRTP article:

[link]

has a comment that confused me:

Pitfalls

One issue with CRTP is that the correct usage of the
pattern by derived classes cannot be checked at compile
time. For example, with the above example of Shape_CRTP,