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Hi,
I'm on C++11, is it possible from decltype to determine which type the call operator must use as return type from std::tuple? The testing code:

#include <iostream>
#include <tuple>

using...

Thanks for your answer, but memory leak happens the same if not catch:

#include <iostream>

void exercise()
{
throw 1; // memory leak
}

int main()

Hi,
I'm trying to throw an exception without a memory leak happens.
Googling I found this FAQ:
https://isocpp.org/wiki/faq/exceptions#why-not-exceptions
where I read: "Throwing an exception will...

Do you mean that way?

#include <iostream>
#include <vector>
#include <iterator>

using namespace std;

struct istream_si
{

What's wrong about this source code?

#include <iostream>
#include <vector>
#include <iterator>

using namespace std;

int main()
{

I'm grateful with you to enlighten me with your answers :) I carefully read the post and as a consequence of this sentence:

Googling I discovered that cppreference says since C++11...

I'm a bit confused when trying to figure out the implementation of a converting ctor. I wrote this source:

#include <iostream>
#include <stdexcept>

using namespace std;

class tinyInt { ...

Maybe I misunderstood the exercise but I chose variadic template as possible solution, now I'm not able to go forward because I don't know how to specialize the variadic for const char* type.
The...

I hope to quickly end these exercises:devil:, although it works fine without it has been asked to write a specialization of the variadic template Element_cnt in order to be called for const char*...

No, nothing to say it's clear now. Instead could I have confirmation about that std::forward act as std::move on t2?
t2 is bound to the literal 42 that is a rvalue therefore std::forward returning...

The number 2 because &j is bound to z passed as lvalue via std::forward
Any further comments?

Yep! my mistakes (I played with the code too much:redface:) the definition of g function at line 13 has changed, then I correct the typo at line 10 (thanks Elysia) in second parameter of the function...

I'm a bit confused :confused: about type conversions in this exercise so I hope someone will enlighten me. C++ is a statically typed language therefore types must match otherwise conversion rules...

I agree, admitting that opensource tools suit my needs which is a good one? Maybe Qt-Creator, I thought...:frown:

I have to buy too many things before to be able to coding with Visual Studio, since C++ is a standard (not proprietary) I think that opensource tools are good enought to accomplish this.
Me too I...

Up to now I'm dealing with the exercises of the book C++ Primer maybe it could be helpful in the future, I don't know

it does

maybe it does; I should check

Does your IDE also checks for...

I haven't an IDE GUI based I wrote code with Visual IMproved in cascade with valgrind they fit my needs, up to now...:)
I learned to use static_assert for these matters, with this code:

#include...

The exercise asked for: "Write a version of sum with a return type that is guaranteed to be large enough to hold the result of the addition."
Therefore I wrote this code:

#include <iostream>...

Yes, I've already tried typeid but I discarded just because it doesn't print a well understandable output for built-in types.
I guess the only way is to use the is_same class as in this link:...

I'd like to print remove_pointer::type member's value. This is the code:
#include <iostream>
#include <type_traits>

using namespace std;

int main()
{
unsigned u(1);
string...

:eek: I didn't realize that those were copy-control members function template, thanks Laserlight!

Out of curiosity, supposing this is the deleter:

class DebugDelete {
public:
DebugDelete(ostream& s = cerr): os(s) { }
template<typename T> void operator()(T* ptr) const...

Does anybody know whether there are software for template debugging/profiling like this one Templight for Debian 8.x GNU Linux? Which program should I have to use?
Thanks in advance

I've checked on the book, for the owners look §14.1 at "Choosing member or non-member implementation"
It explain that for symmetric operator like arithmetic it's usual deal with mixed type for...

Cpp Primer 5th Edition this one: https://play.google.com/store/books/details/Stanley_Lippman_C_Primer?id=J1HMLyxqJfgC