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您应该使用
-werror
编译。这将您的警告变成了错误。当您这样做时,您会看到以下错误:应该向您表明有问题。如果将其更改为字符串文字:
,一切都可以。
You should compile with
-Werror
. This turns your warnings into errors. When you do this, you will see the following error:Which should indicate to you that something is wrong. If you change this to a string literal:
Then everything will be ok.