Category: C++

#include <vector> #include <iostream> class Semantics { public: // Pass by value to store a new copy using std::move // (rvalue is moved, lvalue is copied) Semantics(std::vector<int> in) : m_v(std::move(in)) { } std::vector<int> get() const { return m_v; } // Pass by reference to modify an `out` parameter: lvalue only void append(std::vector<int> &out) { out.insert(out.end(),…

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How do you convert a vector of 8bit values (bytes) to a vector of 32bit values (words)?

Why would you want to do such a thing? Well maybe you have a bytes stream that needs to be sent over a 32bit bus?

Achieve the flexibility of Map but with the type safety of scoped enumerations.

Allow reverse lookup of the enumeration type from the mapped value by using class template iterators.

Maps enum type literals to strings (or any type)

Singleton pattern ensure only single instance

Encapsulation checks if key exists to prevent lookup errors/exceptions.

Manage vector with the added safety of class encapsulation

Convert an unsigned integer to a vector of bytes (char) using function templates.

If you don’t know the type at compile time you can just use the template parameter type and the compiler will deduce the type from the function call itself. For example, see the commented out c’tor below. This is great for typing the size of std::array function parameter. However you could come unstuck if a…

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