What essential properties of these collections do you need in your functions? What are the requirements for the type?

Generally it's smth like "here're functions which should be written in the way so one can SFINAE them", not practical, but studying stuff. I know how to make specific function for specific type to make SFINAE work, but I thought I can unify the exact processing function. One should just process data in any way, say just to reprint the value I'm passing

So the practice is included in the 90 hours i take it. Total cost 90 hours of study.

What C++ standard do you use?

CXX_STANDARD 17

So the practice is included in the 90 hours i take it. Total cost 90 hours of study.

I'd suggest to move to C++20 because there's a useful feature that significantly enhances the code quality for such stuff - C++20 concepts

Thanks, I've seen them, but it's the task for next "homework" 😄 I should use exact 17 standard

Can anyone help me with a full c/c++ course. I can learn from

learncpp.com

Also, there is something called "detector idiom" It was proposed for C++ standard but never got accepted It'll simplify the code substantially https://en.cppreference.com/w/cpp/experimental/is_detected But be careful, the implementation there may not work with all the compilers

The implementation given in CppReference should work even on a C++17 compiler provided you implement nonesuch (which is also a TS2 feature). void_t became available in C++17. Otherwise the implementation doesn't use anything that was not already in C++17

We have a loop that is the same size as a list, which removes the elements of the list until the size of the list becomes zero. Then the question is, when the loop goes from zero to up, and removes zero, the next round i becomes incremented by one. Now, when it reaches the end and the size of the list has become one, why doesn't it give an error when i is incremented to ten?

Even ChatGPT has difficult time understanding you:

It's difficult to provide a specific answer without seeing the code you're referring to, but I can offer some general insights that may be helpful. In C++, when you use a loop to iterate over a container (such as a list), it's generally not a good idea to modify the container's size within the loop. Doing so can lead to unexpected behavior, such as invalid iterators, segmentation faults, or infinite loops. However, if you're removing elements from a container while iterating over it, you can use a while loop instead of a for loop. Here's an example:

std::list<int> my_list = {1, 2, 3, 4, 5}; auto it = my_list.begin(); while (it != my_list.end()) { if (*it == 3) { it = my_list.erase(it); } else { ++it; } }

In this example, we're iterating over a list of integers and removing the element with the value 3. We use an iterator it to keep track of our position in the list, and we use the erase() function to remove the element and return an iterator to the next element. If we don't remove an element, we simply increment the iterator. As for your specific question about incrementing i when the list size is zero, it's hard to say without seeing the code. However, if i is an integer index that's used to access the list elements, then incrementing it after removing an element is likely to cause problems. When the list size reaches 1, you may still be able to access the last element using my_list[0], but you should avoid incrementing i past the end of the list.

I remember I tried it on MSVC and it didn't work

Danya what’s the difference between .begin() and .data() 0.0?

Works fine on the oldest Visual Studio compiler in Godbolt with C++11 standard even. https://godbolt.org/z/76GsdsKnT

Maybe I used a different implementation

Is it possible to create an API using c++ ?

Is there any specific library ?

What kind of API you want to create?

Payment API ?

So these things are usually complex, there may be a library that does something similar to what you need, but it's not likely. More likely that you would need to use multiple libraries and write business logic and all the glue code yourself. Assuming you are not proficient un C++ (if you ask such questions) it may take several months at least. So I'm not sure why you are in a hurry.

Is it possible to create an API using c++ ?

And this question, it is possible to create nearly anything in C++, the question is, "does it make sense in your specific situation", and the situations can be very different

Actually c++ is new to me but I know but about this question

I am not like pro but I am at that level... Where I can solve it out... By the way.. Thank you for your suggestions and giving me way .. ..

Based on your previous messages, i'd advice you to just use some commercial payment processing service, definitely the fastest way to accomplish your goals.

Hi all I would like to know if someone can help me to teach C# at least 10 hours or more, I work with PLC but would like to learn C#, then I will pay for the classes , send me a message if is possible Thanks

Is there any specific library ?

好吧

Hey 👋 and greetings everyone I have this doubts as I’m just getting into C++ Creating a console app Should I create a function ‘game’ within a class ? And how to go about that .

No one can read your thoughts and no one knows what the function "game" is If you want an actual answer, please ask the question properly

I’m trying to create a dice rolling game In c++ but want an option where users of different types can choose different games , So I created a class for players My issue is Should I add a function within the player class for the different games I want to create ? Or create a separate class named ‘game’ and create functions inside for different games And the big twist is How 🥹

There are multiple approaches to that, one popular approach is define Game as "pure virtual class" or "interface", a class that has only pure virtual functions. Then hide everything that is different between different types of games behind these functions in the concrete implementations of Game (children of Game). It can be just a function like "process player move" that gets what player has inputted and processes the output, or can be more specific functions for different cases like getAmountOfDiceToRoll(). How you store the data also can be different, you can store the data in the specific classes-implementions or in separate classes/structs. You may also decide to make the base class not pure virtual and store some generic data and methods in it. There are pros and cons in it. Or you can move all the common code into a separate set of files (either making classes or just helper functions there).

Hello! Is it possible to constraint tuple containing types while calling a function? e.g: print(std::make_tuple(1, 2, 3)); // Success, all types are the same print(std::make_tuple(apple, 'B', 65536)); // Fail, types are different I see the tuple definition in the way of: template< class... Types > Soooo looks like it's "generalized" by design, but may there be the way to specialize template or smth?

You can make a variadic template function that calls std::make_tuple under the hood and constraint the function (compare type of every variadic argument with the type of the first argument, which specify separately)

Hi! I have class with next constructor: template<typename T> SomeClass(T&& someObj) { } The main purpose to place someObj to member of SomeClass object. Is it a good idea that this constructor also plays role of copy and move constructors? I separate them by constexpr checking type. Seems ugly..

oh, hurried up... i just forgot about SFINAE power) ignore it

Hi, does any one have experience using boost-test. I'm using a windows system, and have built the boost library with g++. How can I link it with my vscode project.

Hi, does any one have experience using boost-test. I'm using a windows system, and have built the boost library with g++. How can I link it with my vscode project.

There is no projects in vs code It's not a build system nor an IDE

You can configure a build system if you made configuration inside .vscode directory

There is no projects in vs code It's not a build system nor an IDE

It is an ide though. You can run cmake projects in it easily

It's not an ide It's text editor with plugins

what ide is then lol

CLion