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How does #include work in C++? [duplicate]
I have read from a codeforces blog that if we add #include <bits/stdc++.h> in a C++ program then there is no need to include any other header files. How does #include <bits/stdc++.h> work and is it ok to use it instead of including individual header files?
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C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...ere these days.
EDIT: Someone else commented that you can also use modern C++ with std::chrono::high_resolution_clock, but that isn't guaranteed to be monotonic. Use steady_clock instead.
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Is “else if” a single keyword?
I am new to C++. I often see conditional statement like below:
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C++: variable 'std::ifstream ifs' has initializer but incomplete type
Sorry if this is pretty noobish, but I'm pretty new to C++. I'm trying to open a file and read it using ifstream :
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std::vector versus std::array in C++
What are the difference between a std::vector and an std::array in C++? When should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same.
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What is the correct answer for cout
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As:
std::operator<<(std::operator<<(std::cout, a++), a);
C++ guarantees that all side effects of previous evaluations will have been performed at sequence points. There are no sequence points in between function arguments evaluation which means that argument a can be evaluated befo...
Qt c++ aggregate 'std::stringstream ss' has incomplete type and cannot be defined
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How do I put two increment statements in a C++ 'for' loop?
...ind an official source for this, since I'm particularly bad at parsing the C++ language standard.)
– Daniel Daranas
Aug 5 '09 at 10:02
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Is short-circuiting logical operators mandated? And evaluation order?
...dard mandate the logical operators to be short-circuited, in either C or C++?
7 Answers
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How can I loop through a C++ map of maps?
How can I loop through a std::map in C++? My map is defined as:
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