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─────The Warning-Level Option (/W)──────────────────────────────────────────
 
     The /W option suppresses compiler warning messages.
 
     Syntax: /W{0 | 1 | 2}
 
     Any message beginning with F4 is a compiler warning message.
     Warnings indicate potential problems (rather than actual errors)
     with statements that may not compile as you intend.
 
     /W1 (the default) causes the compiler to display warning messages.
     /W0 turns off warning messages. /W2 suppresses the following:
 
          F4998  variable used but not declared
 
          F4999  variable declared but not used
 
     /W0 and /W2 apply to the remainder of the command line or until
     the next occurrence of /W1 on the command line.
                                    -♦-