## ŒNERROR Return an error message describing the last file error

The niladic ŒNERROR function returns a character vector with a message giving details of the last error from the native file system. The error message is set whenever a native file system function returns a FILE I/O ERROR, and only cleared by )CLEAR. Note that it is not affected by native file functions which complete without error.

Topic: APLX Help : Help on APL language : System Functions & Variables : ŒNERROR Get last native file error

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