What does std:: Mean? : r/cpp_questions - Reddit
So, basically, a namespace is something that can help you group things. std is for standard use only. The rule is: never add something to std by yourself! The std namespace groups all the standard …
Why is "using namespace std;" used in c++ programs??
Jun 28, 2021 · As a fellow beginner,Let's first talk about the :: part. For example we have: std::cout For me, it means that cout is a function located within (edit: <iostream> std). But think of it as cout is …
Default Stop Type: STD, Bid/Ask, Mark : r/thinkorswim - Reddit
Jan 22, 2023 · The order defaults selection that you reference will populate your Order Entry. So yes, if you selected default type of LIMIT, then the STOP does not matter and will not be displayed in the …
When should I use std::endl; ? : r/cpp_questions - Reddit
Feb 7, 2021 · So, the std::endl; object ends the line, and flushes the stream, and I understand that part. Does that mean I should use it any time I write a function that uses ostream class? How can I tell …
Can someone explain to a c++ newbie what <<, >>, cin and cout
Jul 29, 2023 · Can someone explain to a c++ newbie what <<, >>, cin and cout are exactly? cin is short for “character input”, i.e. a stream of char values as input to the program. Correspondingly wcin (no …
What does "std::" mean? ex cout << "Hello" << std:: endl; : r ... - Reddit
Feb 21, 2020 · The expression using namespace std; makes it so that namespace is the one used by default so you don't have to specify it for every symbol. Your specific example is odd because both …
ELI5: What is 3 Standard deviation above the mean ? : r ... - Reddit
May 1, 2024 · There was this guy saying something along, "I think to have great outcomes, you actually do need to work at like three standard deviation above the mean " I only remember basic statistics …
What does 'while (cin >> variable)' exactly do? : r/cpp_questions - Reddit
Jan 27, 2021 · The second aspect is that operator>> returns the calling object. So std::cin >> obj; returns cin; This means when you write while (cin >> value) you do the >> operation into value and …
What exactly does the size of std::string mean? : r/cpp_questions - Reddit
Nov 12, 2020 · But, and correct me if my understanding is wrong, then does that mean there's no real way to find the amount of memory allocated for the actual string (the physical array of chars, not its …
Why does std::endl flush the buffer? : r/Cplusplus - Reddit
Sep 10, 2022 · std::cin >> std::setw(count) >> c_ptr; This will call the stream buffer's sgetn which can do a bulk read operation that can even sink and then circumvent the buffer. I mean, if you're reading in …