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在gcc中执行C ++ 98标准

[英]Enforcing the C++98 standard in gcc

原文 2012-09-26 16:56:21 7 1 c++/ gcc/ c++98

I have a school assignment that should be written in C++98-compliant code. 我有一个学校作业，应该用符合C ++ 98的代码编写。 How can I force g++ to accept only code that follows this standard? 如何强制g++只接受遵循此标准的代码？ Will -std=c++98 do the trick or do I need to add additional flags? 请问-std=c++98可以解决这个问题，还是需要添加额外的标志？

1 个解决方案

Per GCC's documentation on standards : 根据GCC的标准文件：

The original ISO C++ standard was published as the ISO standard (ISO/IEC 14882:1998) and amended by a Technical Corrigenda published in 2003 (ISO/IEC 14882:2003). 最初的ISO C ++标准作为ISO标准（ISO / IEC 14882：1998）公布，并由2003年出版的技术勘误表（ISO / IEC 14882：2003）进行了修订。 These standards are referred to as C++98 and C++03, respectively. 这些标准分别称为C ++ 98和C ++ 03。 GCC implements the majority of C++98 (export is a notable exception) and most of the changes in C++03. GCC实现了大部分C ++ 98（导出是一个值得注意的例外）和C ++ 03中的大多数更改。 To select this standard in GCC, use one of the options -ansi, -std=c++98, or -std=c++03; 要在GCC中选择此标准，请使用以下选项之一-ansi，-std = c ++ 98或-std = c ++ 03; to obtain all the diagnostics required by the standard, you should also specify -pedantic (or -pedantic-errors if you want them to be errors rather than warnings). 要获得标准所需的所有诊断，您还应指定-pedantic（或-pedantic-errors，如果您希望它们是错误而不是警告）。

Therefore, you should specify -std=c++98 -pedantic if you really want to ensure standards compliance. 因此，如果您确实希望确保符合标准，则应指定-std=c++98 -pedantic 。