41. What is the size of a long double in C++? 8 bytes 10 bytes 12 bytes 16 bytes Answer:B) 10 bytes Explanation: The size of a long double in C++ is 10 bytes. Learn & Test Your Skills Python MCQsJava MCQsC++ MCQsC MCQsJavaScript MCQsCSS MCQsjQuery MCQsPHP MCQsASP.Net MCQs ...
In addition to overloading constructors with different parameters, we can overload constructors with default parameter values, as well. For example: class Circle { private: double radius; public: Circle() { radius = 1.0; } Circle(double r) { radius = r; } Circle(double r, double x, ...
NULL is 0(zero) i.e. integer constant zero with C-style typecast to void*, while nullptr is prvalue of type nullptr_t which is integer literal evaluates to zero. For those of you who believe that NULL is same i.e. (void*)0 in C & C++. I wo...
double area = calculateArea(rect); std::cout << "The area of the rectangle is: " << area << std::endl return 0;} Output: Benefits of Using the Friend Function Enhanced encapsulation control by selectively allowing external access to private members Improved code organization by grouping rela...
It defines two arrays, sale and temp, containing 20 and 10 elements respectively of double type. It is sometimes convenient to define an array size in terms of symbolic constants rather than a fixed integer quantity. This makes it easy to modify the program by simply changing the value of ...
You can also reach us on Twitter (@VisualC), or via email at visualcpp@microsoft.com. 5 4 0 Category C++ Author Sy Brand C++ Developer Advocate Sy Brand is Microsoft’s C++ Developer Advocate. Their background is in compilers and debuggers for embedded accelerators, but they’re also ...
&& double reference in c++ :&& is a new reference operator defined in the C++11 standard. int&& a means "a" is an r-value reference. && is normally only used to declare a parameter of a function. And it only takes an r-value expression......
The last remaining pointer to the object, in the form of a std::unique_ptr, is passed to your final_release. You can then opt to move ownership of that pointer to some other context. It's safe for you to QI the pointer without triggering a double-destruction. But the net change to...
What should I do if garbled characters are displayed in HiLog information? How do I analyze fault logs (such as JSCrash, CppCrash, and Appfreeze)? How do I locate the fault when the application crashes? Which one is recommended for logging, HiLog or console? How do I set the dom...
cpp afxwin1.inl ASSERT error in AfxGetResourceHandle() already defined in .obj Alternative for strptime() AlwaysCreate -> unsuccessfulbuild ambiguous symbol An error occurred while creating or opening the C++ browsing database file... Any idea about invalidoperationexception: no process is ...