tree 5e2680e15f8d162afe4efb8cf63f134e2f2b99a6
parent c282b6c927d59d8f4bd89468a4ef29591e887f26
author Marcin Kowalczyk <qrczak@google.com> 1635500420 +0200
committer qrczak <qrczak@google.com> 1635500795 +0200

Rename functions returning distances between buffer pointers:
* `buffer_size()` → `start_to_limit()`
* `{written_to,read_from}_buffer()` -> `start_to_cursor()`

This avoids a naming conflict with a `buffer_size()` setting in various
`Options`, avoids a weird case when only one buffer-related name differs between
`Reader` and `Writer`, and is more explicit.

`available()` stays unchanged. It is fundamental when reading/writing directly
at `cursor()` so it can have a shorter name.

PiperOrigin-RevId: 406318134