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Change link() to shallowCopy() (issue #1343)

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Instead of storing a pointer, the function copies the `VariantData`.

Benefits:
* smaller code
* no impact on programs that don't use this feature

Drawbacks:
* changes to the original variant are not always reflected on the copy
* modifying the original from the shallow copy leads to UB
This commit is contained in:
Benoit Blanchon
2022-07-05 17:07:43 +02:00
parent 3b3ab8c4e1
commit cd8373ad32
36 changed files with 78 additions and 543 deletions
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8
extras/tests/Cpp11/nullptr.cpp
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@@ -43,13 +43,5 @@ TEST_CASE("nullptr") {
variant.clear();
REQUIRE(variant.is<std::nullptr_t>() == true);
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
variant.link(doc2);
REQUIRE(variant.is<std::nullptr_t>() == false);
doc2.clear();
REQUIRE(variant.is<std::nullptr_t>() == true);
}
}