If a program contains a violation of any diagnosable rule, a conforming implementation shall issue a least one diagnostic message, except that.
如果程序违反了任何可诊断规则，符合标准的实现应该给出至少一条诊断消息，除非。
A conforming implementation may have extensions (including additional library functions), provided they do not alter the behavior of any well-formed program.
只要这些扩展不会改变任何良好形式程序的行为，符合标准的实现就可以带有扩展(包括附加的库功能)。
If a program contains no violations of the rules in this International Standard, a conforming implementation shall, within its resource limits, accept and correctly execute3 that program.
如果程序不违反本国际标准的规则，符合标准的实现应该在其资源限制下，接受并正确执行3这个程序。
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