The meaning o开发者_运维问答f both eludes me.A declaration introduces an identifier and describes its type, be it a type, object, or function. A declaration is what the compiler needs to accept refere
Someone brought this article to my attention that claims (I\'m paraphrasing) the STL term is misused to refer to the entire C++ Standard Library instead of the parts that were taken from SGI STL.
Coming from other C-derived languages (like Java or C#) to C++, it is at first very confusing that C++ has three ways to refer to members of a class: a::b, a.b, and a->b. When do I use which one of
C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone (std::vector<T> since C++98 and std::array<T, n>
I have heard using namespace std; is bad practice, and that I should use std::cout and std::cin directly instead.
Consider this topic a sequel of the following topic: Previous installment Undefined behavior and sequence points
Recently I\'ve seen an example like the following: #include <iostream> class Foo { public: int bar;
In the following code, the variable has no initial value and printed this variable. int var; cout << var << endl;
I find myself repeatedly baffled by the rdstate() flags - good(), bad(), eof(), fail() - and how they are expressed in basic_ios::operator!, operator bool and operator void*.
Questions开发者_JAVA百科 What is the proper signature of the main function in C++? What is the correct return type, and what does it mean to return a value from main?
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