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[Wiseung]

learn-cxx测试

[Copilot]

Pull request overview

This PR implements solutions for a series of C++ learning exercises (learn-cxx), progressing from basic syntax to advanced topics including STL containers, templates, and move semantics. The changes fill in TODO comments and placeholders with working implementations to make the test assertions pass.

Key Changes

• Completed 34 C++ exercises covering fundamental concepts (variables, functions, classes) through advanced topics (templates, smart pointers, STL algorithms)
• Implemented proper memory management patterns including destructors, copy constructors, and move semantics
• Added correct usage of STL containers (vector, array, map) and algorithms (transform, accumulate)

Reviewed changes

Copilot reviewed 34 out of 34 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
exercises/00_hello_world/main.cpp	Fixed syntax error in cout statement
exercises/01_variable&add/main.cpp	Changed exercise from variable addition to hello world output
exercises/02_function/main.cpp	Added function declaration and implementation for add function
exercises/03_argument&parameter/main.cpp	Filled in correct assertion values for pass-by-value demonstration
exercises/04_static/main.cpp	Filled in expected values for static variable behavior
exercises/05_constexpr/main.cpp	Implemented iterative fibonacci and changed constexpr to const for compilation
exercises/06_array/main.cpp	Completed ternary expression for cached fibonacci calculation
exercises/07_loop/main.cpp	Implemented array-based fibonacci with caching logic
exercises/08_pointer/main.cpp	Implemented pointer stride logic for fibonacci sequence validation
exercises/09_enum&union/main.cpp	Completed type punning conversion using union
exercises/10_trivial/main.cpp	Fixed struct member access and initialization for cache
exercises/11_method/main.cpp	Implemented caching logic in struct method and initialization
exercises/12_method_const/main.cpp	Added const qualifier to method signature
exercises/13_class/main.cpp	Implemented class constructor with array initialization
exercises/14_class_destruct/main.cpp	Implemented constructor and destructor for dynamic memory
exercises/15_class_clone/main.cpp	Implemented copy constructor for deep copying
exercises/16_class_move/main.cpp	Implemented move constructor and move assignment operator
exercises/17_class_derive/main.cpp	Filled in static_assert values for inheritance size calculations
exercises/18_class_virtual/main.cpp	Filled in expected values for virtual function behavior
exercises/19_class_virtual_destruct/main.cpp	Fixed static member initialization and added virtual destructor
exercises/20_function_template/main.cpp	Converted function to template and fixed floating-point comparison
exercises/21_runtime_datatype/main.cpp	Templated sigmoid function and implemented tagged union dispatch
exercises/22_class_template/main.cpp	Implemented broadcasting addition for 4D tensor class template
exercises/23_template_const/main.cpp	Implemented shape initialization and index calculation for templated tensor
exercises/24_std_array/main.cpp	Filled in correct values for std::array usage
exercises/25_std_vector/main.cpp	Completed std::vector operations and assertions
exercises/26_std_vector_bool/main.cpp	Implemented std::vector specialization usage
exercises/27_strides/main.cpp	Implemented stride calculation for contiguous tensor storage
exercises/28_std_string/main.cpp	Filled in type assertions and string concatenation
exercises/29_std_map/main.cpp	Implemented map lookup and insertion functions
exercises/30_std_unique_ptr/main.cpp	Analyzed and filled in unique_ptr lifecycle patterns
exercises/31_std_shared_ptr/main.cpp	Filled in reference count values for shared_ptr operations
exercises/32_std_transform/main.cpp	Implemented std::transform with lambda for vector transformation
exercises/33_std_accumulate/main.cpp	Implemented std::accumulate for tensor byte size calculation

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