What does /= mean in C++?

/= Divide AND assignment operator, It divides left operand with the right operand and assign the result to left operand. C /= A is equivalent to C = C / A.

What is the use of && in C++?

The logical AND operator (&&) returns true if both operands are true and returns false otherwise. The operands are implicitly converted to type bool before evaluation, and the result is of type bool .

How do you write a statement in C++?

A simple C++ statement is each of the individual instructions of a program, like the variable declarations and expressions seen in previous sections. They always end with a semicolon ( ; ), and are executed in the same order in which they appear in a program.

Can any expression be used as a statement in C++?

Every expression can be used as a statement (whose effect is to evaluate the expression and ignore the resulting value), but most statements cannot be used as expressions.

Is ++ i the same as i ++?

The only difference is the order of operations between the increment of the variable and the value the operator returns. So basically ++i returns the value after it is incremented, while i++ return the value before it is incremented.

What does int * mean in C?

pointer
int* means a pointer to a variable whose datatype is integer. sizeof(int*) returns the number of bytes used to store a pointer.

What does :: mean in C++?

// C++ program to show that scope resolution operator :: is used. // to define a function outside a class. #include using namespace std; class A.

Which operator can be overloaded in C++?

Most can be overloaded. The only C operators that can’t be are . and?: (and sizeof , which is technically an operator). C++ adds a few of its own operators, most of which can be overloaded except :: and .

What is statement in C++ with example?

An expression statement is an expression followed by a semicolon. Most statements in a typical C++ program are expression statements, such as assignments or function calls. An expression statement without an expression is called a null statement. It is often used to provide an empty body to a for or while loop.

What are expression statements C++?

Most statements in a typical C++ program are expression statements, such as assignments or function calls. An expression statement without an expression is called a null statement. It is often used to provide an empty body to a for or while loop. It can also be used to carry a label in the end of a compound statement.

What happens if x is not less than 0 in C?

However, if x is not less than 0, the second if…else statement is executed. There, if x is equal to 0, sign is also set to 0. But if x is greater than 0, sign is instead set to 1. Rather than a nested if…else statement, beginners often use a string of if statements:

What is the value of x\%2?

It is only defined for operands with integer type. In this particular case (x\%2), if x is odd the result is one, otherwise the result is zero. This means X modulo 2.

What is x\%2 in C++?

It is only defined for operands with integer type. In this particular case (x\%2), if x is odd the result is one, otherwise the result is zero. This means X modulo 2. Remainder that you get after dividing X by 2. What does \% mean in C++?

What is the difference between x=0 instead of x==0?

There is no difference, code-wise. All that’s happening is that saying x=0instead of x==0is such a common mistake that most compilers will emit a warning (or error, in your case) when they see it. The extra set of parentheses is a common trick to shut the compiler up — the equivalent of saying ‘yes, I really meant to do this’. Share