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Your Vector::operator[] return a vector&. Your insert is empty and uses an undefined type iterator. You have a data member and a member function sharing the same name size. Your destructor is ~vector instead of ~Vector. And there are a lot of compile errors left. \$\endgroup\$ –
\$\begingroup\$ Creating byte data[length]; then creating a vector forces a copy. Why not make data a vector and simply return it. Then the compiler can do lots of optimization and build the vector directly at the destination so removing the need for a copy. \$\endgroup\$ –
I am trying to sort vectors based on a reference vector. First I am getting the indexes for the reference vector and then using that I am doing inplace sorting for the rest of the vectors. #includ...
I am learning about templates in C++ so I decided to implement an N-dimensional vector. The code seems to work fine, but there are a few things that I am unsure about. To stop GetW() being called on a 3-dimensional vector, I used std::enable_if .
Storing the data takes a little longer (O(log n) for the set vs. amortized O(1) for the vector), but finding the data makes up for it (O(log n) for the set vs. O(n) for the vector). If you use a set, make sure to use set's find function (e.g. mySet.find(tableNum) rather than std::find(mySet.begin(),mySet.end(),tableNum) ), or there's no benefit.
I am dealing with some older C style APIs, like Posix execve that take a char**. In the rest of my code, I prefer to use a fairly modern C++ style, so I have vector of std::string.
Another obvious possibility would be to continue to store the data in a vector, but keep the vector sorted so you can do the search with std::binary_search. Right now this is O(N). Using std::set or a sorted vector with std::binary_search will reduce that to O(log N).
I profiled a library I'm writing that uses vector transposes and found that I am spending a good bit of time doing the following transpose. I am using a std::vector of std::vector<double>s to
I have learned a bit of C in university and I'm now learning C++ independently. I'm trying to print out std::vector<std::string> char by char. I know, that in C, strings are arrays and are terminated by '\0' terminator. Can I assume the same thing in c++? I use C++14. This works, but I'm unsure if it's the correct way to do this.
I'm extremely new to C++ and am doing the exercises on the book Accelerated C++. Here is one of the exercises: 4-5. Write a function that reads words from an input stream and stores them in a vector. Use that function both to write programs that count the number of words in the input, and to count how many times each word occurred.