First of all, there are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn’t really matter. The relevance is what does. If an object can be constructed in one step (not like in the builder pattern), the constructor is … Read more
Today I have bumped into this problem and solved it in the following way. I pressed “Reset defaults” button everywhere I could find it in Eclipse settings (for example, Preferences/C++/Build/Settings/Discovery). After that the error disappeared and the code compiled successfully.
If you want to make it clear what each initializer value is, just split it up on multiple lines, with a comment on each:
Issue is saying that string doesn’t have the operator>> method, but it does… Did you forget #include <string> at the top of that file? Maybe try using getline(std::cin, allTaxiDetails[I].taxiRank, ‘\n’);. Define operator>> for your struct.
For returning two values I use a std::pair (usually typedef’d). You should look at boost::tuple (in C++11 and newer, there’s std::tuple) for more than two return results. With introduction of structured binding in C++ 17, returning std::tuple should probably become accepted standard.
O_RDONLY | O_WRONLY (at least on my Linux machine) is not the same thing as O_RDWR. The fact that it works seems like a bug/feature/coincidence rather than “it works because it should work that way”.
Array in C++ must have a size defined at compile-time. If you want variable length array, use std::vector instead. In your case, I would use template for Matrix Size and have different implementation for different matrix size (unless I misunderstood your intentions). Since I did not defined the generic template, using any other value than 2 or … Read more
I find it easiest to understand move semantics with example code. Let’s start with a very simple string class which only holds a pointer to a heap-allocated block of memory: Since we chose to manage the memory ourselves, we need to follow the rule of three. I am going to defer writing the assignment operator and … Read more
Compile the program with: as cout is present in the C++ standard library, which would need explicit linking with -lstdc++ when using gcc; g++ links the standard library by default. With gcc, (g++ should be preferred over gcc)
There is no need to learn C before learning C++. They are different languages. It is a common misconception that C++ is in some way dependent on C and not a fully specified language on its own. Just because C++ shares a lot of the same syntax and a lot of the same semantics, does … Read more