On Fri, 14 Oct 2016 17:17:59 +0000 Joshua Hurwitz via cfe-commits <cfe-commits@lists.llvm.org> wrote:
> See attached. > > Returning a bool from main is a special case of return type mismatch. The > common convention when returning a bool is that 'true' (== 1) indicates > success and 'false' (== 0) failure. But since main expects a return value > of 0 on success, returning a bool is usually unintended. This triggers a false positive if you use a boolean expression like: return !foo; i.e. whenever user intentionally inverts a 'non-zero success' into 'zero success'. -- Best regards, Michał Górny <http://dev.gentoo.org/~mgorny/>
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