010 editor recursive struct2/2/2024 ![]() If you want to support copy semantics, you'll have to write a value_ptr that does copies, and give it the equivalent of struct copy_s to implement that copy. It does mean that client code has to knowingly interact with the unique_ptr and not the struct s directly. (You can encode the integer N by having N recursions of not-the-same: no fixed size buffer can hold an infinite amount of information.)Īs such, the equivalent std::variant stores a smart pointer of some kind placeholder of a recursive instance of itself. ![]() There is no way to actually have a structure containing a possible variant of itself without a dynamic allocation, as such a structure can easily be shown to be infinite in size if statically declared. This Hex Editor is best for larger devices with files. wxHe圎ditor Wxhe圎ditor is another advanced Hex Editor for data editing. For editing or reviewing hex details, it is one of the simplest Hex Editors. ![]() (It will also heap allocate in a number of other situations, uncertain how many) The Oketta Hex Editor is famous for opening multiple remote HTTP and FTP files. In this example reduce returns an object of type boost::variant which is then converted to an object of type boost::variant >.īoost::variant will heap allocate in order to have part of itself be recursively defined as itself. Cool But it does create a small issue if you try to use the typedef struct definition, since the compiler has to know what the type is during the type definition itself. There are two generic functions: first function reduce chooses at runtime which argument to return (here it just returns first argument for brevity), second function adapt converts a value of type F to a value of type T. This is a recursive type, because the type struct node contains a pointer to another object of the same type. Static_assert(std::is_convertible_v, "") I'd like to replace boost::variants with C++17 std::variant and get rid of boost::recursive_wrapper, to remove dependency on boost completely in following code.
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