Fortran Language Keywords

by NAG Fortran Compiler Release 7.0

Colour scheme

When different parts of the descriptions apply to different editions of the Fortran standard, different colours are used as follows.

Green : Fortran 2003 feature

Purple : Fortran 2008 feature

Pink : Fortran 2018 feature

Light Orange : Obsolescent (but still standard) feature

Orange : Deleted (previously standard) feature

Dark red : Non-standard feature

Note: These colours are not used when the entire page is for the same edition of the Fortran standard.. For example, the “CLASS specifier” page is monochrome since the entire contents are applicable to Fortran 2003 onwards only (and with no changes in later standards).