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  1. c++ - Difference between | and || , or & and && - Stack Overflow

    Dec 28, 2015 · I find it weird C++ doesn't allow bitwise operations on floats, although one can say they don't make much sense, these are still bit sequences, and one can do arithmetic on them.

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

    The & operator does the same thing in C and C++: it takes the address of an object. The & in a function prototype is not an operator. I'll fix the title.

  3. What does the |= operator mean in C++? - Stack Overflow

    Jan 18, 2012 · What does the |= operator mean in C++?Assuming you are using built-in operators on integers, or sanely overloaded operators for user-defined classes, these are the same: a = …

  4. c++ - What is the difference between the dot (.) operator and ...

    foo->bar() is the same as (*foo).bar(). The parenthesizes above are necessary because of the binding strength of the * and . operators. *foo.bar() wouldn't work because Dot (.) operator is …

  5. What is the <=> ("spaceship", three-way comparison) operator in …

    Nov 24, 2017 · The <=> token is introduced. The character sequence <=> tokenizes to <= >, in old source code. For example, X<&Y::operator<=> needs to add a space to retain its meaning. …

  6. How do you add a timed delay to a C++ program? - Stack Overflow

    Sep 12, 2014 · I am trying to add a timed delay in a C++ program, and was wondering if anyone has any suggestions on what I can try or information I can look at? I wish I had more details on …

  7. What are the actual min/max values for float and double (C++)

    Feb 6, 2018 · The std::numerics_limits class in the <limits> header provides information about the characteristics of numeric types. For a floating-point type T, here are the greatest and least …

  8. c++ - How do I find the length of an array? - Stack Overflow

    Is there a way to find how many values an array has? Detecting whether or not I've reached the end of an array would also work.

  9. C++ Undefined Reference (Even with Include) - Stack Overflow

    I cannot get this simple piece of code to compile without including the TestClass.cpp file explicitly in my main.cpp file. What am I doing wrong? Thanks in advance! Here is the code: TestClass....

  10. What is the meaning of prepended double colon - Stack Overflow

    I found this line of a code in a class which I have to modify: ::Configuration * tmpCo = m_configurationDB;//pointer to current db and I don't know what exactly means the double …