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Set extended error information.
Source position: baseunix.pp line 44
procedure fpseterrno(  | 
err: LongInt  | 
);  | 
fpseterrno sets the extended information on the latest error. It is called by all functions that communicate with the kernel or C library.
Unless a direct kernel call is performed, there should never be any need to call this function.
  | 
Retrieve extended error information.  |