This fits very poorly together with exceptions, when a function must interrupt the control flow, after an error but before resetting the global format state. Global format state of Ĭ++, unlike C, relies on a global format state. The problem is largely solved by precompiled headers in modern compilers or using the module system that was added in C++20 future C++ standards are planning to expose the functionality of the standard library using modules. Large C++ projects can therefore be relatively slow to compile. This problem is magnified where the classes are written as templates, forcing all of their code into the slow header files, which is the case with much of the C++ standard library. This forces unnecessary recompiles of all source files that include the header file, each time when changing these private functions. ![]() ![]() C++ stores its classes in header files and they not only expose their public variables and public functions (like C with its structs and function prototypes) but also their private functions. C only has limited amounts of information in header files, the most important being struct declarations and function prototypes. Header files are slow because they are textual and context-dependent as a consequence of the preprocessor. Each time a header file is modified, all source files that include the header file should recompile their code. The natural interface between source files in C/C++ are header files. ![]()
0 Comments
Leave a Reply. |