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General::strmn

General::strmn

Details

  • This message is generated when a duplicate stream number is encountered during input or output.
  • Streams are assigned a unique number when they are opened. An error occurs if the same number is used with a different stream.
  • This error can occur when entering InputStream and OutputStream expressions.
  • The InputStream and OutputStream expressions returned by functions such as OpenAppend, OpenRead, OpenWrite, and StringToStream are generally valid and should be used whenever practical, rather than entering a new InputStream or OutputStream expression.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[General::strmn].

Examples

Basic Examples  (1)

Open a stream to a string:

The stream number is the second element in the resulting InputStream expression:

Attempting to read from a stream with the same number but with a different name will generate an error:

This shows a correct way to read from this stream:

Close the stream: