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Subject: Re: [boost] [new Warnings policy] MS C4180 on theMaintenanceGuidelines
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-11-20 09:45:12

Emil Dotchevski wrote:
> Unless a warning fix
> also fixes a bug, it has *no* positive effects other than hiding the
> warning, yet may introduce problems that testing could miss.

The suppression constructs can rot. Future changes to code may obviate the original need to suppress warnings, while preventing the compiler from warning about new (potential) problems. If the maintainer isn't sufficiently disciplined to stop suppressing warnings while working on changes, and then suppressing them again later, if still necessary, other problems can be hidden. It isn't hard to imagine that discipline be lost or never adopted.

Changing code to eliminate warnings avoids the need for suppression constructs and leaves the compiler free to warn when the code is changed in the future.

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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