I know that the atomic types do not have copy constructors, and I assume that explains why this code does not work. Yes, the error says that quite clearly. Does anybody know a way to actually get this code to work? Instead of copy-initialising from a temporary, which requires an accessible copy constructor: std::atomic<int> order::c … Read more
Sure. In fact, given that Haskell is purely functional, it’s much easier to define a constant than a non-constant. magicNumber = 42 magicList = [1..magicNumber]
The compiler has made it a common, which can be merged with other compatible symbols, and which can go in bss (taking no space on disk) if it ends up with no explicitly initialized definition. Putting it in rodata would be a trade-off; you’d save memory (commit charge) at runtime, but would use more space … Read more
Java floating point is based on the IEEE 754 binary floating point standard Floating Point Standard, the first version of which was issued in about 1985, so it is much older than Java. Given widespread hardware implementation of IEEE 754 by the time Java was being defined, the Java creators had little choice. Each IEEE … Read more
c c17 The older question Is it guaranteed to be safe to perform memcpy(0,0,0)? points out 7.1.4p1: Each of the following statements applies unless explicitly stated otherwise in the detailed descriptions that follow: If an argument to a function has an invalid value (such as a value outside the domain of the function, or a … Read more
A const void * points to memory that should not be modified. A void * (non-const) points to memory that could be modified (but not via the void *; you’d have to cast it first). When you use memmove(), the source address is cast to const void *: void *memmove(void *dst, const void *src, size_t … Read more
A constant value must be known at compile time, use readonly instead, it will have a similar effect
Use a function call inside a delegating (if avaliable, not neccessarily) constructor’s member initialization list: A::A(std::string const& yourstring) : A(compute_myint(yourstring)) {}; Pass std::string by const&, not just const, while you’re at it. compute_myint can be non-member, static member, possibly not accessible from outside the class, whichever makes the most sense.
From the C# specification, chapter 10.4 – Constants: (10.4 in the C# 3.0 specification, 10.3 in the online version for 2.0) A constant is a class member that represents a constant value: a value that can be computed at compile time. This basically says that you can only use expressions that consists solely of literals. … Read more
Your info constant is defined in your myApp module. If I understand your question correctly, you’d like to use the constants in other modules (e.g. myApp.orders module). If so, then you need to inject myApp into myApp.orders, but it looks like you want to do the reverse. One solution is to decouple the constants into … Read more