发出警告和编译与警告 - 错误违反合规性？ [英] Issue warning and compiling with warnings-as-errors violates compliance?

问题描述

我的问题（单行评论延续）让我想知道编译器合规性和警告消息，特别是在许多编译器中具有警告错误功能。

My question (Single line comment continuation) got me wondering about compiler compliance and warning messages, particularly with warnings-as-error feature in many compilers.

从C ++规范，§1.4.2.1说明：

From the C++ spec, § 1.4.2.1 states:

如果程序没有违反本国际标准中的规则，合格的实施应在其资源限制内接受并正确执行该程序。

If a program contains no violations of the rules in this International Standard, a conforming implementation shall, within its resource limits, accept and correctly execute that program.

如果技术上符合标准的代码（如我的链接问题）发出警告消息，即使我特别要求警告（再次，在我的例子中，如果我使用 -Wcomments 与gcc），并使用警告错误（ -Werror ），程序将无法编译。我意识到这是相当钝，因为我可以解决这个问题在几个方面。

If a warning message is issued for code which technically conforms to the standard (as in my linked question), even if I specifically asked for a warning to be issued (again, in my example if I used -Wcomments with gcc), and I use warning-as-errors (-Werror), the program will not compile. I realize that this is rather obtuse, given that I could workaround the issue in several ways. However, given the quote, is this a violation of the standard which is generally permitted, or is somehow otherwise explicitly allowed?

推荐答案

这是违反通常允许的标准，还是以其他方式明确允许的？是的，如果你告诉实现不符合标准（例如，通过请求错误的格式良好的代码结构），那么它的行为将不符合。

Yes, if you tell the implementation not to conform with the standard (for example, by requesting errors for well-formed code constructs), then its behaviour won't be conforming.

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