- Operator
Visual Studio .NET 2003
The - operator can function as either a unary or a binary operator.
- expr expr1 - expr2
Where:
- expr
- An expression.
- expr1
- An expression.
- expr2
- An expression.
Remarks
Unary - operators are predefined for all numeric types. The result of a unary - operation on a numeric type is the negation of the operand.
Binary - operators are predefined for all numeric and enumeration types to subtract the second operand from the first.
Delegate types also provide a binary - operator, which performs delegate removal.
User-defined types can overload the unary - and binary - operators (see operator).
Example
// cs_operator_minus.cs
using System;
class Test
{
public static void Main()
{
int a = 5;
Console.WriteLine(-a);
Console.WriteLine(a - 1);
Console.WriteLine(a - .5);
}
}
Output
-5 4 4.5
See Also
C# Operators | 7.6.2 Unary minus operator | 7.7.5 Subtraction operator
