关于forall 和 where

jason388

在新的Fortran2015标准中，forall已经被列为obsolescent特性，

The FORALL construct and statement were added to the language in the expectation that they would enable
highly efficient execution, especially on parallel processors. However, experience indicates that they are too
complex and have too many restrictions for compilers to take advantage of them. They are redundant with the
DO CONCURRENT construct, and many of the manipulations for which they might be used can be done more
effectively using pointers, especially using pointer rank remapping.

所以还是不用的好。

jason388

wx_G5fH8Rhq 发表于 2015-8-21 17:19
看起来像是编译器原因。。。
哥们儿你这个 标准文档在哪儿整的 我也想看·· ...

http://j3-fortran.org/doc/year/15/15-007r1.pdf

jason388

wx_G5fH8Rhq 发表于 2015-8-21 17:21
还有 where 没有被列入废弃特性吧？

没有where。较新的特性就只有forall命运不好。