C++ - Reddit

Idea for a programme Hi, I feel most comfortable in C++ right now and have most experience with it. I wanted to create a programme which is for some sort of database which would hold some names and some numbers to those names like dates or other details about meeting etc. Question is, what would be the way to go around it, should I make it purely console that prints a table drawn by the console? Sorting objects etc could be done by writing sort by "coulmn name" in console. Or is it bad approach and could I do it somehow else, maybe even with some sort of UI? Or maybe even try to somehow make it work with excel sheets (if so, how to do it)? Thank you for any piece of advice or hints! https://redd.it/lo8mmu @r_cpp

ES.20: Always initialize an object I have written a lot of code in my life that is morally equivalent to the this: void onQuestion(Answer& answer) { int a; try{ a = getFirstPartOfResponseFromDatabase(); } catch(...) { answer.setErrorFirstDatabaseUnavailable(); return; } int b; try { b = getFirstPartOfAnswer(); } catch(...) { answer.setErrorSecondDatabaseUnavailable(); return; } answer.setValue( a + b ); answer.setResultOk(); return; } and I mean. That works. But I'm not exactly proud of it. My problem is that I cannot (1) change the function signature; (2) emit an exception; or (3) use std::optional (with optional it's kind of trivial, but the senior architect on the project doesn't like it) void onQuestion(Answer& answer) { optional<int> const a = getA(); //does the exception handling internally if(!a) { answer.setErrorFirstDatabaseUnavailable(); return; } optional<int> const b = getB(); //does the exception handling internally if(!a) { answer.setErrorSecondDatabaseUnavailable(); return; } answer.setValue( a + b ); answer.setResultOk(); return; } Can you think of a way to follow ES.20 without violating any of the other constraints? https://redd.it/lo7ht5 @r_cpp

Timur Doumler - How C++20 changes the way we write code - Meeting C++ 2020 https://www.youtube.com/watch?v=VK-16tpFQVI https://redd.it/lo4z89 @r_cpp

Best book for learning c++? Hey, so im looking to learn c++ with mild coding experience. I have done some research on books and the following 5 seem to be pretty popular. Which would you guys recommend >!Book 1: https://www.amazon.com/Effective-Specific-Improve-Programs-Designs-dp-0321334876/dp/0321334876/ref=mt\_other?\_encoding=UTF8&me= Book 2: https://www.amazon.com/Programming-Principles-Practice-Using-2nd-dp-0321992784/dp/0321992784/ref=mt_other?_encoding=UTF8&me=&qid= Book 3: https://www.amazon.com.au/dp/0321563840?tag=hackr-22&geniuslink=true Book 4: https://www.amazon.com.au/dp/020170353X?tag=hackr-22&geniuslink=true Book 5: https://www.amazon.com.au/dp/0134997832/ref=rdr_kindle_ext_tmb !< [View Poll](https://www.reddit.com/poll/lo2v9c) https://redd.it/lo2v9c @r_cpp

C++ Quizes? Hi, I‘m playing around with cppquiz and wonder if there are similar pages/services out there? Cppquiz is pretty good, but maybe different concepts exists for more variation? https://redd.it/lo24qz @r_cpp

cryptopp: ld: symbol(s) not found for architecture x8664 Apple clang version 12.0.0 (clang-1200.0.32.29) Target: x86\64-apple-darwin20.3.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1" ... "non-virtual thunk to CryptoPP::BufferedTransformation::GetMaxWaitObjectCount() const", referenced from: vtable for CryptoPP::Sink in hashTest-456cdc.o vtable for CryptoPP::Bufferless<CryptoPP::Filter> in hashTest-456cdc.o vtable for CryptoPP::Unflushable<CryptoPP::Filter> in hashTest-456cdc.o vtable for CryptoPP::SimpleProxyFilter in hashTest-456cdc.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) https://redd.it/lo06ie @r_cpp

A hole in Clang’s -Wsuggest-override https://quuxplusone.github.io/blog/2021/02/19/virtual-final-silences-override-warning/ https://redd.it/lnyndd @r_cpp

LLVM Clang 12 Performance Benchmarks On AMD Ryzen 9 5950X https://www.phoronix.com/scan.php?page=article&item=clang-12-5950x&num=1 https://redd.it/lnxcxu @r_cpp

OOP ideas What are some best unique projects to apply all OOPS concepts in c++? https://redd.it/lnww8c @r_cpp

C++ code assistant addon for VS - can you recommend a good one e.g. Visual Assist for beginners learning C++? I'm learning C++ and am finding the auto complete suggestions in Visual Studio 2019 helpful. However, is there anything better? I've watched some XCode C++ sessions on Mac and like the auto complete/suggestor on there. Would like something to display parameters that a function expects and troubleshoot my code to see if I am passing the right types, declaring variables correctly etc. https://redd.it/lnsn52 @r_cpp

Top five C/C++ things/tips/tricks you wish you had known earlier and are now used very often https://redd.it/lnqvf6 @r_cpp

Let's drive Perseverance in C++ Builder App Let's drive Perseverance in C++ app. Here we go : https://learncplusplus.org/learn-to-develop-a.../ \#perseverance #CountdownToMars https://redd.it/lnoala @r_cpp

when use of this to refer to a class member? Hi all, So Im tired to debate that you should not explicit use this to refer to a class member unless some type of disambiguation is needed. But my coworkers says that that is a personal style, or that they like to use that because is an indicator that the variable is a class member. My rationale is that less code is better and that a bunch of this-> clutters the screen and makes more difficult to review the code, also we use m_ as a prefix for all class variable member so we dont need this-> to know that is a variable member. In the end i recognize that my arguments are subjective but i would like to know if there is some consensus regarding this subject and if there objective arguments to use it or not. Thanks! https://redd.it/lnoni4 @r_cpp

Better IDE features for VS Code C-mantic is a VS Code extension I'm working on that offers many IDE-like features for C/C++. Create function definitions, generate getters and setters, move definitions, and more. If you've tried other extensions that offer similar features and were disappointed like I was, try this out, I think you'll like it. Check it out here or search for it within VS Code: https://marketplace.visualstudio.com/items?itemName=tdennis4496.cmantic Only requires a C/C++ language server extension (Intellisense), such as Microsoft's C/C++ or clangd. https://redd.it/lnk1qq @r_cpp

CppCast: Trading Systems https://cppcast.com/trading-systems-carl-cook/ https://redd.it/lni7ze @r_cpp

Guys can you explain me what this code does? Hey guys. I found this code on stackoverflow and i can't understand it. Can someone if have free time to explain to me, i would appreciate that a lot. Thanks in advance! https://imgur.com/a/EvlmJR3 https://redd.it/lnf4dl @r_cpp

trying to initialize std::array<> from parameter constructor passing a constant reference value. Hello Cpp sub, I am working on a project with requires me to initialize a "std::array<> \ t" in a parameter constructor but I'm not sure how to do it. The value be in passed to the constructor is a "const std::array<>& l" I try different ways but can't see to figure out a correct way to do it. how could this be done? thank you in advance. https://redd.it/lnbaef @r_cpp

A Great Way To Learn The Best C++ Course https://computertrainingclases.blogspot.com/2020/02/a-great-way-to-learn-best-c-course.html https://redd.it/lncg58 @r_cpp

CLion 2021.1 EAP: Postfix Completion for C++ https://blog.jetbrains.com/clion/2021/02/clion-2021-1-eap-postfix-completion/ https://redd.it/lnatgl @r_cpp

Generic C++ library for Decision Tree Classification and Random Forest Classification. https://github.com/vpatel95/decision-tree-classifier https://redd.it/ln8rij @r_cpp