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How to implement automated testing tools in C?

Implementing automated testing tools in C mainly uses the GoogleTest framework. 1. Write test cases and use the EXPECT_EQ macro to verify the function output. 2. Manage test cases and use test suite grouping. 3. Generate test data and use data-driven tests. 4. Generate test reports, GoogleTest provides built-in functions and can be customized. 5. Integrate into CI/CD pipelines, execute and report results automatically.

Apr 28, 2025 pm 08:27 PM

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How to use LLVM toolchain in C?

Using the LLVM toolchain in C can be achieved through the following steps: 1. Install LLVM and Clang, 2. Use Clang to compile C files to generate LLVMIR, 3. Use llvm-dis to view the IR code, 4. Use LLVM optimization passes to optimize the code. Use the LLVM toolchain to deeply control and optimize the compilation process of C code.

Apr 28, 2025 pm 08:24 PM

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What is cross-compilation in C?

Cross-compilation in C refers to compiling an executable file or library that can run on another platform on one platform. 1) Cross-compilation requires the use of a special cross-compiler, such as GCC or Clang variants. 2) Setting up a cross-compilation environment can use Docker to manage toolchains to improve repeatability and portability. 3) When cross-compiling, pay attention to code optimization options, such as -O2, -O3 or -Os, to balance performance and file size.

Apr 28, 2025 pm 08:21 PM

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How to use type traits in C?

typetraits are used in C for compile-time type checking and operation, improving code flexibility and type safety. 1) Type judgment is performed through std::is_integral and std::is_floating_point to achieve efficient type checking and output. 2) Use std::is_trivially_copyable to optimize vector copy and select different copy strategies according to the type. 3) Pay attention to compile-time decision-making, type safety, performance optimization and code complexity. Reasonable use of typetraits can greatly improve code quality.

Apr 28, 2025 pm 08:18 PM

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What is fuzz testing in C?

Fuzz testing is an effective automated testing technology in C for discovering errors and vulnerabilities in software. 1) By inputting random or semi-random data, observe the program response and detect the performance of unexpected input. 2) It is especially suitable for C, which can expose memory leaks and buffer overflows. 3) Use tools such as libFuzzer and AFL to automatically generate test cases and execute tests.

Apr 28, 2025 pm 08:15 PM

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