Search results
Results from the WOW.Com Content Network
Although function pointers in C and C++ can be implemented as simple addresses, so that typically sizeof(Fx)==sizeof(void *), member pointers in C++ are sometimes implemented as "fat pointers", typically two or three times the size of a simple function pointer, in order to deal with virtual methods and virtual inheritance [citation needed].
A function signature consists of the function prototype. It specifies the general information about a function like the name, scope and parameters. Many programming languages use name mangling in order to pass along more semantic information from the compilers to the linkers. In addition to mangling, there is an excess of information in a ...
In the code, the function would examine the size of original and then malloc times that length to set aside memory for the string it will build. That malloc is invisible to the functions calling it, if they fail to later release the memory, a leak will occur. In Zig, this might be handled using a function like:
Locates the address of the function in memory and pushes its arguments onto the stack, marshaling data as required. P/Invoke is useful for using standard (unmanaged) C or C++ DLLs. It can be used when a programmer needs to have access to the extensive Windows API, as many functions provided by the Windows libraries lack available wrappers.
A custom interface, anything derived from IUnknown, provides early bound access via a pointer to a virtual method table that contains a list of pointers to the functions that implement the functions declared in the interface, in the order they are declared. An in-process invocation overhead is, therefore, comparable to a C++ virtual method call.
PHP Desktop – provide a way for developing native desktop GUI applications using web technologies such as PHP, HTML5, JavaScript and SQLite. PokerStars – online poker cardroom; PTC Creo – Creo Parametric Chromium embedded browser; QuarkXPress – JavaScript support; RAGE Multiplayer – multiplayer engine for PC game Grand Theft Auto V
Use a minimum of two runtime assertions per function. Restrict the scope of data to the smallest possible. Check the return value of all non-void functions, or cast to void to indicate the return value is useless. Use the preprocessor only for header files and simple macros. Limit pointer use to a single dereference, and do not use function ...
Smart pointers can facilitate intentional programming by expressing, in the type, how the memory of the referent of the pointer will be managed. For example, if a C++ function returns a pointer, there is no way to know whether the caller should delete the memory of the referent when the caller is finished with the information.