routines 可以在一定限制及约束下当作C 函数来用。 一些其他的language binding也是可选的: Lapack95 (页面存档备份,存于互联网档案馆) uses features of Fortran95 to simplify the interface of the routines
of Fortran 2003 Features supported by GNU Fortran. GNU. [2009-06-25]. (原始内容存档于2023-01-18). Chart of Fortran 2008 Features supported by GNU Fortran. GNU
specifications, features与packages。这部分标准主要包含强制与可选的特性。 ISO/IEC 9075-13:2016 Part 13: SQL Routines and types using the Java TM programming language (SQL/JRT).