On 02/15/2021 08:54 PM, Chris Angelico wrote:
On Tue, Feb 16, 2021 at 12:45 PM Mark Filipak (ffmpeg)
<markfili...@bog.us> wrote:
-bigsnip-
The rest of 'C' syntax, and precedent, and operators, etc. I know. It's just
pointers that mystify
me. Now I understand what a struct actually is but pointers?... not so much. I
thought I understood,
but '**' fuddled it. I'm afraid I'm one of the people who, for example,
actually prefer BNF to
textual descriptions.
A pointer, ultimately, is just a number - the address of the next
thing. So the pointer-to-pointer is saying "at this address, you can
find the address you want".
If this isn't helpful, feel free to ignore it; I'm sure there's BNF
around somewhere to explain it, but I'm not sure I could write it that
way, sorry.
Hahaha... I brought up BNF just to illustrate how anal compulsive I am. For example, documentation
that's just for my eyes is full of regex & BNF.
You've given me a good push. Thanks so much. I hope I can pull a thorn out of
your paw some day.
The ffmpeg source code and header files remind me of minified json. Everything is there, but it's
all so abstract that it's nearly impossible to read.
Take care, and thanks again,
Mark.
--
Any journey, no matter how long, is just a series of small steps.
"Government is the problem!" -- 1982 and onward.
"_______ is the enemy of the people!" -- 2016 and onward.
"You have to fight like hell or you're not going to have a country!" -- Jan 6,
2021.
It isn't the distance that's important, it's the direction.
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