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Fixed potential wraparound issue with property IDs

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This commit is contained in:
Sam Lantinga
2023-10-12 06:22:34 -07:00
parent c9ccf0670c
commit b79db0a6ea
1 changed files with 5 additions and 1 deletions
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6
src/SDL_properties.c
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@@ -124,7 +124,11 @@ SDL_PropertiesID SDL_CreateProperties(void)
} }
if (SDL_LockRWLockForWriting(SDL_properties_lock) == 0) { if (SDL_LockRWLockForWriting(SDL_properties_lock) == 0) {
props = ++SDL_last_properties_id; ++SDL_last_properties_id;
if (SDL_last_properties_id == 0) {
++SDL_last_properties_id;
}
props = SDL_last_properties_id;
if (SDL_InsertIntoHashTable(SDL_properties, (const void *)(uintptr_t)props, properties)) { if (SDL_InsertIntoHashTable(SDL_properties, (const void *)(uintptr_t)props, properties)) {
inserted = SDL_TRUE; inserted = SDL_TRUE;
} }