setting errno

[Mumit Khan]

Tim Taylor <ttaylor@mitre.org> writes:
> I'm porting a program that sets errno if an operation fails.  However, in
> the B20.1 errno is a macro that dereferences the pointer returned by a
> function #define errno (*__errno())
> 
> What is the proper way to set errno in cygwin?

As you would expect; eg.,

  #include <errno.h>

  /* .... */
  
  errno = ENOENT;

will do the right thing.

Regards,
Mumit

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