/checked (C# Compiler Options)
The /checked option specifies whether an integer arithmetic statement that results in a value that is outside the range of the data type, and that is not in the scope of a checked or unchecked keyword, causes a run-time exception.
/checked[+ | -]
Remarks
An integer arithmetic statement that is in the scope of a checked or unchecked keyword is not subject to the effect of the /checked option.
If an integer arithmetic statement that is not in the scope of a checked or unchecked keyword results in a value outside the range of the data type, and /checked+ (/checked) is used in the compilation, that statement causes an exception at run time. If /checked- is used in the compilation, that statement does not cause an exception at run time.
The default value for this option is /checked-. One scenario for using /checked- is in building large applications. Sometimes automated tools are used to build such applications, and such a tool might automatically set /checked to +. You can override the tool's global default by specifying /checked-.
To set this compiler option in the Visual Studio development environment
Open the project's Properties page. For more information, see Build Page, Project Designer (C#).
Click the Build property page.
Click the Advanced button.
Modify the Check for arithmetic overflow/underflow property.
To access this compiler option programmatically, see CheckForOverflowUnderflow.
Example
The following command compiles t2.cs. The use of /checked in the command specifies that any integer arithmetic statement in the file that is not in the scope of a checked or unchecked keyword, and that results in a value that is outside the range of the data type, causes an exception at run time.
csc t2.cs /checked
See Also
Concepts
Introduction to the Project Designer