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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _putw function writes a binary value of type int to the
     current position of the stream. The _putw function does not affect
     the alignment of items in the stream, nor does it assume any
     special alignment.
 
     The _putw function is provided primarily for compatibility with
     previous libraries. Note that portability problems can occur with
     _putw, since the size of an int and ordering of bytes within an
     int differ across systems.
 
     Return Value
 
     The _putw function returns the value written. A return value of
     EOF may indicate an error. Since EOF is also a legitimate integer
     value, ferror should be used to verify an error.
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