我一般用这样的编译选项...

-Wall -Wextra -Wmissing-declarations -Wmissing-prototypes -Wimplicit-function-declaration -Wunused -Wuninitialized -Wvla -Wformat -Wformat-security -Wmain -Wsequence-point -Wshadow -Wbad-function-cast -Wcomments -Wdeclaration-after-statement -Waddress -Wpointer-sign -Wempty-body -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wmissing-field-initializers -Wmaybe-uninitialized -Wno-return-local-addr -Wreturn-type -Wsequence-point -Wundef -Wunknown-pragmas -Wunused-label

no warning, no error...

【 在 happysoul (happysoul) 的大作中提到: 】
: #发送自zSMTH@IOS
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FROM 142.59.143.*