VMS Help  —  CRTL  ferror_unlocked
    Same as ferror, except used only within a scope protected by
    flockfile and funlockfile.

    This function is supported on OpenVMS Integrity servers and
    Alpha only.

    Format

      #include  <stdio.h>

      int ferror_unlocked  (FILE *file_ptr);
Additional Information: explode extract
Argument Description Return Values
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