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Introduce formal policy for APIs that return strings.

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This declares that any `const char *` returned from SDL is owned by SDL, and
promises to be valid _at least_ until the next time the event queue runs, or
SDL_Quit() is called, even if the thing that owns the string gets destroyed
or changed before then.

This is noted in the headers as "the SDL_GetStringRule", so this will both be
greppable to find a detailed explaination in docs/README-strings.md and
wikiheaders will automatically turn it into a link we can point at the
appropriate documentation.

Fixes #9902.

(and several FIXMEs, both known and yet-undocumented.)
This commit is contained in:
Ryan C. Gordon
2024-06-01 22:05:21 -04:00
parent b1f3682216
commit e23257307e
51 changed files with 262 additions and 123 deletions
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2
test/testaudio.c
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@@ -973,7 +973,7 @@ static Thing *CreatePhysicalDeviceThing(const SDL_AudioDeviceID which, const SDL
if (thing) {
thing->data.physdev.devid = which;
thing->data.physdev.iscapture = iscapture;
thing->data.physdev.name = SDL_GetAudioDeviceName(which);
thing->data.physdev.name = SDL_strdup(SDL_GetAudioDeviceName(which));
thing->ondrag = DeviceThing_ondrag;
thing->ondrop = PhysicalDeviceThing_ondrop;
thing->ontick = PhysicalDeviceThing_ontick;