Many details regarding compilers are discussed in this document. In this section, we elaborate on the connection between the C++ programming language and compiler tools. What is the significance of compilers? Below are some answers; It is common knowledge that computers interpret commands written in a binary machine code consisting of 0s and 1s. The original code is scripted in a high-level programming language.
To ensure the computer can comprehend instructions, a translation or interpreter is essential. The compiler serves as a highly accessible means of interacting with the system. Upon compiling a C++ file, an object file is generated. Initially, the compiler executes the pre-processor, followed by the compilation stage resulting in the creation of the object file. C++ programs involve extensive lines of template programming, necessitating users to enhance their efficiency.
Procedure for Compiling C++
A C++ program consists of a header file (.h) and a source code file (.cpp). Moreover, the #include directive is employed to link external libraries or files with C++ programs.
There are three phases involved in compiling the C++ programme:
- Preprocessing: In this step, the source CPP file's included files are utilised, and the code is changed there. This procedure doesn't involve using header files. Similarly, preprocessing replaces the code of macros and inline functions when they are called before they are used.
- Compile: After the file has been preprocessed, it is compiled to create an object file with the extension ".o".
- Linking: The connecting procedure involves linking the object file to any third party applications and functions that the application makes use of. The software will eventually run correctly.
Top C++ compilers for hosted environments
1. Microsoft Visual C++ compiler
Microsoft integrated C++ and C compilers into Visual Studio. The current version of the compiler, 19.28.29914, bundled with Microsoft Visual 2019 version 16.10, provides complete backing for the core language improvements in C++17, encompassing the C++17 library components, and offers partial support for C++20 features.
The upcoming integration of Visual C++ compilers in Visual Studio 2022, currently accessible in a preview version, will provide comprehensive backing for the functionalities of C++20. Although typically employed for Windows development with the Windows Subsystem for Linux (WSL) interface, the Visual C++ compiler will now also allow the development of native Linux applications.
2. The GNU compiler collection
One of the top open-source software applications available is the GNU compiler collection, commonly known as GCC. Apart from C and C++, this toolset is utilized for compiling various other programming languages. GCC 11, the latest release, provides complete support for both the core language and library features of C++17. It introduces some minor improvements in Modules and presents experimental support for nearly all the features in the C++20 language and library. Noteworthy is the integration of certain aspects of the upcoming C++23 standard in GCC 11, following the C++20 standard as its predecessor.
3. Clang/LLVM
In a recent blog post, I compared GCC and Clang, delving into the intricacies of the compiler's structure and highlighting how the LLVM backend facilitates the integration of fresh optimizations. Clang/LLVM version 12.0 offers comprehensive support for C++17 and is currently exploring experimental support for C++20. As you browse through this content, you'll understand the reasons why numerous C++ compilers opt to base their tools on this accessible framework.
4. Intel C++ compiler
When working on demanding applications, I have employed the Intel C++ compiler, particularly the Intel® oneAPI DPC++/C++ Compiler, and I have found its performance to be highly satisfactory. In contrast to Visual Studio, which offers WebView2 support for web-based applications and MFC (Microsoft Foundation Classes) for desktop application development, Intel's compiler prioritizes Data Parallel C++ (DPC++) and Threading Building Blocks (now open-sourced as oneAPI), highlighting a different emphasis. The Intel Compiler stands out in scenarios involving computationally intensive programs that leverage parallel computing (including parallel STL), Field-Programmable Gate Array (FPGA) support, and Graphics Processing Unit (GPU) support. The latest version of the Intel C++ compiler is compliant with the C++17 standard.
5. IBM XLC++
For operating systems like z/OS, Ubuntu on Power, Unix, and Aix I, developers can leverage the IBM XLC++ compiler integrated with PASE. This compiler offers advanced optimization techniques, enabling the creation of complex C++ applications with highly optimized code. IBM has contributed code for Power, IBM, and Aix Z systems to the Clang/LLVM project. In 2020, IBM announced that the IBM XLC++ compiler toolset would transition to using the Clang/LLVM framework. Consequently, the IBM XLC++ compiler is well-equipped to support the latest C++ standards seamlessly.
6. MinGW
It is a freely available software that operates independently without requiring additional elements and seamlessly combines with Microsoft Windows software development. It incorporates GCC compilers tailored for C, C++, and Fortran programming languages. The client favors this particular compiler due to the extensive portability facilitated by the adherence to ANSI Compliance within GCC. By utilizing either Windows 32 or min32, a specialized project can be integrated alongside various other software packages, and it is authorized for usage within a specific edition. The G++ compiler grants us complete entry to the source code. Its rapid performance and user-friendly nature, which necessitate DLL libraries, serve as significant benefits.
Conclusion
IDEs and C++ compilers play a crucial role in programming. They enable the development of various advanced C++ applications. One of the key advantages of these IDEs is the ability to carry out the compilation seamlessly within a single integrated development environment.
Integrated Development Environments (IDEs) also include text editors for editing source code, enabling developers to write and modify code efficiently. These open-source text editors offer various features like auto-completion and IntelliSense, enhancing the speed and accuracy of code writing.
