Flee Supported Operators

In a programming language, operators are special symbols such as +, -, *, etc., that perform some action on operands. The Flee library manages a large set of C# operators, and it also respects the C# precedence rules of operators.

• Operators allow the processing of primitive data types, and objects.
• They take as an input one or more operands and return some value as a result.

For example, operators are the signs for adding, subtracting, multiplication, and division like +, -, *, /, and their operations on the integers and the real numbers.

Types

Below is a list of the different types of operators

Arithmetical

In C#, the arithmetical operators are +, -, *, etc., and they perform mathematical operations such as addition, subtraction, and multiplication respectively on numerical values, and the result is also a numerical value.

Here are some examples of arithmetic operators and their effects.

public static void Example1()
{
    List<string> expressions = new List<string>()
    {
        "a + b",
        "a - b",
        "a * b",
        "b / a",
        "a % b"
    };

    ExpressionContext context = new ExpressionContext();

    context.Variables["a"] = 6.5;
    context.Variables["b"] = 10.0;

    foreach (var expression in expressions)
    {
        IDynamicExpression eDynamic = context.CompileDynamic(expression);
        Object result = eDynamic.Evaluate();
        Console.WriteLine("{0} = {1}", expression, result);
    }
}

Let's run the above code and you will see the following output.

a + b = 16.5
a - b = -3.5
a * b = 65
b / a = 1.5384615384615385
a % b = 6.5

Logical

Logical operators or you can say Boolean operators take Boolean values and return a Boolean result (true or false).

The following table contains the logical operators in C# and the operations that they perform.

Let's consider the following simple examples of logical operators.

a And b = False
a Or b = True
Not b = True
true Or b = True
a Xor b = True

Comparison Operators

Comparison operators are used to comparing two or more operands. C# supports the following comparison operators.

• greater than (>)
• less than (<)
• greater than or equal to (>=)
• less than or equal to (<=)
• equality (=)
• difference (<>)

The following example shows the usage of comparison operators.

public static void Example3()
{
    List<string> expressions = new List<string>()
    {
        "a > b",
        "a < b",
        "a = b",
        "a >= b",
        "a <= b",
        "a <> b",
    };

    ExpressionContext context = new ExpressionContext();

    context.Variables["a"] = 6.5;
    context.Variables["b"] = 10.0;

    foreach (var expression in expressions)
    {
        IDynamicExpression eDynamic = context.CompileDynamic(expression);
        Object result = eDynamic.Evaluate();
        Console.WriteLine("{0} = {1}", expression, result);
    }
}