Type constructors are language artifacts that build new types. Qualifiers are type constructors in the sense that const(T) is a distinct type from T, but there are many other type constructors: T[], T*, templates, etc. The page http://dlang.org/const3.html should refer to qualifiers as "qualifiers", not "type constructors".
https://github.com/D-Programming-Language/dlang.org/pull/714
Commits pushed to master at https://github.com/D-Programming-Language/dlang.org https://github.com/D-Programming-Language/dlang.org/commit/c20a58d71baa6cc88cb8a993d1d7b06e3ff06a03 Issue 13671: Replace "type constructor" with "type qualifier". https://github.com/D-Programming-Language/dlang.org/commit/97ff72e84f01138ab607c5a074b802d15c17a5e4 Merge pull request #714 from quickfur/issue13671 Issue 13671: Replace "type constructor" with "type qualifier".
Thanks!