I have following pattern:Pseudo code:I'm unable to come up with some nice clean code for this.This link provides different approaches, but they all look more or less cumbersome to me.
I'm trying to copy a map into a vector of pair, so I can then sort the vector by the second data member of the pairs. I have resolved this doing like this:
I have a simple function template to calculate the average value of a container:I added in the static_cast<>s above to try to force the calculation to the desired type <T>.
C++14 final working draft makes the following comment about std::vector:Storage management is handled automatically, though hints can be given to improve efficiency.
If I have something like:Would STL be able to preallocate space in newVector before processing and adding the new elements? I know it is not a requirement of the algorithm, but would a "good" implementation be able to optimize that? Or, for this kind of case, should I prefer adding...
I have a problem with constant single element std::vector when pass through a function. C++ compiler automatically call wrong function when the std::vector variable contain a single element. This is though the policy of C++ design. However is there any explicit method to specify in such a case. Here are...