What is Weffc?
-Weffc++ (C++ and Objective-C++ only) Warn about violations of the following style guidelines from Scott Meyers’ Effective C++ series of books: Define a copy constructor and an assignment operator for classes with dynamically-allocated memory. Prefer initialization to assignment in constructors.
What is FNO Rtti?
-fno-rtti. Disable generation of information about every class with virtual functions for use by the C++ runtime type identification features ( dynamic_cast and typeid ). If you don’t use those parts of the language, you can save some space by using this flag.
What is GCC and MinGW?
MinGW is a compiler system based on the GNU GCC and Binutils projects that compiles and links code to be run on Win32 (Windows) systems. It provides C, C++ and Fortran compilers plus other related tools. ‘MinGW’ refers to the “Minimalist GNU for Windows” project.
What is clang vs GCC?
GCC is a mature compiler with support for many languages. As can be seen from the name Clang supports mostly C, C++, and Objective-C. But the framework underlying Clang called LLVM is extensible enough to support newer languages like Julia and Swift.
Is __ Cplusplus standard?
C++ preprocessor macro __cplusplus Its value corresponds to the C++ standard that the compiler uses to compile a compilation unit.
What is the flag in GCC?
Recommended compiler and linker flags for GCC
| Flag | Purpose |
|---|---|
| -fstack-clash-protection | Increased reliability of stack overflow detection |
| -fstack-protector or -fstack-protector-all | Stack smashing protector |
| -fstack-protector-strong | Likewise |
| -g | Generate debugging information |
What is Option G ++?
Some of the more important compiler options a beginner should know about are:- -c. Stops processing after compilation is complete. The g++ command is in fact a driver that can run both the compiler and linker and for trivial programs its convenient to compile and link in a single step.
What is RTTI C++?
Run-time type information (RTTI) is a mechanism that allows the type of an object to be determined during program execution. RTTI was added to the C++ language because many vendors of class libraries were implementing this functionality themselves. This caused incompatibilities between libraries.
How do I enable RTTI?
RTTI will be enabled or disabled when compiling your program via compiler options – it’s not something enabled or disabled in the Unix environment globally. The easiest way to see if it’s enabled by default for your compiler is to just try compiling some code using RTTI.