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What is an lvalue?

• It's an expression that represents an object with an address.
• It's a constant expression, meaning an expression composed of constants and operations.
• It's a location value, meaning a memory address suitable for assigning to a pointer or reference.
• It's an expression suitable for the left-hand side operand in a binary operation.

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What does the auto type specifier do in this line of code (since C++11)?

auto x = 40000.22;

• It specifies that more memory will be allocated for x in case it needs more space, avoiding loss of data due to overflow.
• It specifies that x is a variable with automatic storage duration.
• It specifies that the type of x will be deduced from the initializer—in this case, double.
• It specifies that the type of x is automatic, meaning that it can be assigned different types of data throughout the program.

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What is a class template?

• It's a class that only consists of member variables, with no constructor, destructor nor member functions.
• It's a skeleton source code for a class where the programmer has to fill-in specific parts to define the data types and algorithms used.
• It's a blank superclass intended for inheritance and polymorphism.
• It's a class written with the generic programming paradigm, specifying behavior in terms of type parameters rather than specific types

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What is the ternary operator equivalent to this code snippet?

if(x)

 y=a;

else

 y=b

• y=if(x?a:b);
• y=(x&a)?a:(x&b)?b:0;
• y=a?b:x;
• y=x?a:b;

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 What is the output of this code? 

#include

int main()

{

    int x=10, y=20;

    std::cout << "x = " << x++ << " and y = " << --y << std::endl;

    std::cout << "x = " << x-- << " and y = " << ++y << std::endl;

    return(0);

}

•  x = 10 and y = 20 x = 11 and y = 19
•  x = 11 and y = 19 x = 10 and y = 20
•  x = 10 and y = 19 x = 11 and y = 20
• x = 11 and y = 20 x = 10 and y = 19

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