Sys.Nargs

OpenTuring

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Sys.NargsPart of Sys module

Syntax   Sys.Nargs : int

Description   The Sys.Nargs function is used to determine the number of arguments that have been passed to a program from the command line. For example, if the program is run from the Turing environment using

        :r file1 file2
then Sys.Nargs will return 2. If a program called prog.x is run under UNIX using this command:

        prog.x file1 file2
the value of Sys.Nargs will similarly be 2.

The Sys.Nargs function is usually used together with the Sys.FetchArg function to access the arguments that have been passed to the program.

Status   Exported qualified.

This means that you can only call the function by calling Sys.Nargs, not by calling Nargs.

See also   Sys.FetchArg for an example of the use of Sys.Nargs.

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