John

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John has asked 14 questions and find answers to 13 problems.

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John questions

Strange behavior about WEXITSTATUS with `G++ 4.9.4`
Aggregate Initialization when initialization values is fewer than the number of members
Are there some circumstances that boost::function could not be replaced by std::function?
Race condition example about shared_ptr
In practice, when `std::unordered_map` must be used instead of `std::map`?
Is it possible to run each testcase in a separate process?
Why does shared_ptr<int> p; p=nullptr; compile?
Why is template<classTp> bool is_array<Tp[]> a partial specialization for template<class T> bool is_array<Tp>?
Why does "weak.lock()" return "nullptr" with the definition of "auto weak=std::make_shared<int>(42);"?
What actually is done when `string::c_str()` is invoked?

John answers

Race condition example about shared_ptr
How does one represent multiple threads in a flow chart