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The operator ! is the C++ operator for the Boolean operation NOT. It has only one operand, to its right, and inverts it, producing false if its operand is true, and true if its operand is false. Basically, it returns the opposite Boolean value of evaluating its operand. For example:
One way to look at the & (reference) operator in c++ is that is merely a syntactic sugar to a pointer. For example, the following are roughly equivalent: void foo(int &x) { x = x + 1; } void foo(int *x) { *x = *x + 1; }
In C/C++, left shift (<<) and right shift (>>) operators are binary bitwise operators that are used to shift the bits either left or right of the first operand by the number of positions specified by the second operand allowing efficient data manipulation.
This is commonly referred to as the conditional operator, and when used like this: condition ? result_if_true : result_if_false. ... if the condition evaluates to true, the expression evaluates to result_if_true, otherwise it evaluates to result_if_false.
Definition. The Modulus is the remainder of the euclidean division of one number by another. % is called the modulo operation. For instance, 9 divided by 4 equals 2 but it remains 1. Here, 9 / 4 = 2 and 9 % 4 = 1. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). Calculation.
An Arrow operator in C/C++ allows to access elements in Structures and Unions. It is used with a pointer variable pointing to a structure or union. The arrow operator is formed by using a minus sign, followed by the greater than symbol as shown below. Syntax: (pointer_name)->(variable_name)
Assignment operators are used to assign values to variables. In the example below, we use the assignment operator (=) to assign the value 10 to a variable called x:
They use symbols such as ==, !=, <=, and > to check if two operands are the same, different, greater than or less than each other. These operators will output a 1 if the statement is true and a 0 if false. Logical Operators.
In C++, stream insertion operator "<<" is used for output and extraction operator ">>" is used for input. We must know the following things before we start overloading these operators. 1) cout is an object of ostream class and cin is an object of istream class 2) These operators must be overloaded as a global function.