What is wrong in the statement a long float x?

The values used in an expression are considered as double (double precision floating point format) unless a ‘f’ is specified at the end. So the expression “x==0.1” has a double on right side and float which are stored in a single precision floating point format on left side.

What is a float value in C?

Float is a datatype which is used to represent the floating point numbers. It is a 32-bit IEEE 754 single precision floating point number ( 1-bit for the sign, 8-bit for exponent, 23*-bit for the value. It has 6 decimal digits of precision.

What is a float statement?

The Java float keyword is a primitive data type. It is a single-precision 32-bit IEEE 754 floating point. It is used to declare the variables and methods. It represents the fractional numbers.

What is a floating point in C++?

A floating point type variable is a variable that can hold a real number, such as 4320.0, -3.33, or 0.01226. The floating part of the name floating point refers to the fact that the decimal point can “float”; that is, it can support a variable number of digits before and after the decimal point.

Can we compare float values in C?

The short answer is that due to the way floating point numbers are represented, you cannot do basic comparison or arithmetic and expect it to work.

What is float in C example?

You can define a variable as a float and assign a value to it in a single declaration. For example: float age = 10.5; In this example, the variable named age would be defined as a float and assigned the value of 10.5.

What is long in C?

Long is a data type used in programming languages, such as Java, C++, and C#. A constant or variable defined as long can store a single 64-bit signed integer. Therefore, if a variable or constant may potentially store a number larger than 2,147,483,647 (231 ÷ 2), it should be defined as a long instead of an int.

Why do we use float in C?

The C programming language provides four other basic data types: float, double, char, and _Bool. A variable declared to be of type float can be used for storing floating-point numbers (values containing decimal places). would not represent a constant expression because its value would change based on the value of i.

Can a float be negative?

Floating point numbers can be positive or negative. The difference between the two is that double-precision floating point numbers can more accurately represent numbers than regular floating point numbers because more digits can be stored.

Can float store negative values in C++?

The range of float values is 3.4e-38 to 3.4e+38. So the float variables should not store negative values.

What is long in C++?

Long is a data type used in programming languages, such as Java, C++, and C#. A constant or variable defined as long can store a single 64-bit signed integer. Therefore, if a variable or constant may potentially store a number larger than 2,147,483,647 (231 ÷ 2), it should be defined as a long instead of an int. …

How do you define a variable as a float in C?

In this example, the variable named age would be defined as a float. This C program would print “TechOnTheNet.com is over 10.500000 years old.” You can define a variable as a float and assign a value to it in a single declaration. In this example, the variable named age would be defined as a float and assigned the value of 10.5.

What is the syntax for declaring multiple float variables?

Or the syntax for declaring multiple float variables is: The name of the first variable to declare. Optional. If provided, it is the value to assign to variable_name1. Optional. These are additional variables that will be declared with the same C type. Optional.

Can ‘if’ statement be executed in C?

Therefore ‘if’ statement can never be executed. Note that the promotion of float to double can only cause mismatch when a value (like 0.1) uses more precision bits than the bits of single precision. For example, the following C program prints “IF”.

What are the right format specifiers for float and long double?

For “float”, “double” and “long double”, the right format specifiers are \%f, \%lf and \%Lf from the above options. It should be noted that C standard has specified other format specifiers as well for real types which are \%g, \%e etc.)