Zhang

Zhang has asked 24 questions and find answers to 3 problems.

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Zhang questions

Why does printf output float 1.45 with one decimal place, and 1.445 with two decimal places in different behaviors? [duplicate]
regex_replace, why does it lose the $1?
Does std::condition_variable::wait_until have any advantage against std::this_thread::sleep_for?
Where could I find all the C++ decimal type indicator?
What is s in std::this_thread::sleep_for(2s)?
How do I generate objects in std::vector and without copy?
Pass an array (variable) as template argument
What is the purpose of a unary "+" before a call to std::numeric_limits<unsigned char> members?

Zhang answers

c++11 get string length in compile time by constexpr
Boost::process hide console on windows
Remove last char in stringstream?