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  1. What does the "->" operator mean in C++? - Stack Overflow

    Feb 12, 2012 · as with almost all operators in C++ you should make the addendum that both * and -> can be overloaded so (*a).b and a->b although usually the same have no guarantee of …

  2. What does the "::" mean in C++? - Stack Overflow

    Mar 17, 2011 · In C++ the :: is called the Scope Resolution Operator. It makes it clear to which namespace or class a symbol belongs. It makes it clear to which namespace or class a …

  3. What are the pointer-to-member operators ->* and .* in C++?

    C++17 — Using std::invoke() instead The use of both operators can be replaced since C++17 by the std::invoke function template. std::invoke provides a unified way of dereferencing member …

  4. What does '&' do in a C++ declaration? - Stack Overflow

    is that in the former case you are guaranteed that myname is non-null, since C++ does not allow NULL references. Since you are passing by reference, the object is not copied, just like if you …

  5. Using :: (scope resolution operator) in C++ - Stack Overflow

    A qualified id-expression is an unqualified id-expression prepended by a scope resolution operator ::, and optionally, a sequence of enumeration, (since C++11)class or namespace names or …

  6. c++ - Difference between - or & and && - Stack Overflow

    Dec 28, 2015 · The operators |, &, and ~ act on individual bits in parallel. They can be used only on integer types. a | b does an independent OR operation of each bit of a with the …

  7. Setting an int to Infinity in C++ - Stack Overflow

    This is such a large number that no other number (at least in c++) can be greater than it. But obviously since we are converting to a type (int), which at max can hold a value 2147483647. …

  8. stl - C++ Double Address Operator? (&&) - Stack Overflow

    As other answers have mentioned, the && token in this context is new to C++0x (the next C++ standard) and represent an "rvalue reference". Rvalue references are one of the more …

  9. c++ - How do I best silence a warning about unused variables?

    In C++11 an alternative form of the UNUSED macro could be formed using a lambda expression(via Ben Deane) with an capture of the unused variable: #define UNUSED(x) …

  10. What are bitwise shift (bit-shift) operators and how do they work?

    Also note that C and C++ do not distinguish between the right shift operators. They provide only the >> operator, and the right-shifting behavior is implementation defined for signed types. The …

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