[glossary] add details about why forward declarations are useful

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Assessment

Difficulty
1/5
Estimated time
Under an hour
Newbie friendliness
68/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp
Domain
documentation

Research direction

Start by locating the glossary and the existing entry for forward declarations. Add a concise note explaining their usefulness for avoiding public headers and dependencies and for reducing compile times, then verify that the glossary remains correctly formatted.

Written by the indexing model from the issue text.

Description

glossary

Generally forward declarations are useful when trying to avoid headers (and their deps) being public and/or to reduce compile times. This ticket is to track adding this note to the glossary.

/cc @GretaCB

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Forks
17
No merged PRs in 30d

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  4. Open a pull request that references the issue number.

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