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From the gcc manual:

   Many options have long names starting with -f or with -W---for example,
   -fforce-mem, -fstrength-reduce, -Wformat and so on.  Most of these have
   both positive and negative forms; the negative form of -ffoo would be
   -fno-foo.  This manual documents only one of these two forms, whichever
   one is not the default.

But if you're asking whether there is a source-level warning disable, I'm not aware if that feature exists in gcc.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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