Fortran 2008是否与以前的Fortran版本向后兼容? [英] Is Fortran 2008 backwards compatible with previous Fortran versions?

问题描述

是的，我知道..，这是无法想象的……这是一个真正的Fortran问题.

Yep I know.., this is not imagined ... it's a real Fortran question.

在以前的版本中，我指的是Fortran 2003、95、90甚至77.

By previous versions I mean Fortran 2003, 95, 90, and even 77.

通过向后兼容，我是说可以轻松运行为2008年以前版本编写的代码(仅对语法进行一些小的更改)?

by backwards compatible I mean can easily run code written for previous versions in 2008 (with nothing more than some minor changes to syntax)?

推荐答案

在Fortran 90中没有删除任何内容，但在Fortran 95及更高版本中删除了一些糟糕的功能.更多被标记为过时".参见例如 http://www.cisl.ucar.edu/zine/96/fall/articles/3.f90.obsolete.html .实际上，编译器供应商仍然包括这些功能，因为那里有很多遗留代码.如果编译器无法编译旧版FORTRAN 77程序，将会引起客户的反感.

Nothing was deleted in Fortran 90 but some awful features have been deleted in Fortran 95 and later. More have been marked as "obsolescent". See, e.g., http://www.cisl.ucar.edu/zine/96/fall/articles/3.f90.obsolete.html. As a practical matter compiler vendors still include these features because there is so much legacy code out there. There would be customer rebellion if compilers couldn't compile legacy FORTRAN 77 programs.

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