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Fix -Werror=unused-result on json::from_cbor() in the 408 regression test

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from_cbor() is [[nodiscard]]; CHECK_THROWS_AS() otherwise discards its
result, which GCC flags under -Werror. Assign to a throwaway json, as
the rest of the suite already does for from_cbor()/from_msgpack().

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-05 22:01:41 +02:00
committed by GitHub
parent 0af973b792
commit 8e3cdd047c
1 changed files with 2 additions and 1 deletions
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tests/src/unit-regression2.cpp
+2 -1
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@@ -1661,7 +1661,8 @@ TEST_CASE("regression test - excessive binary container size honors allow_except
// declared length of 2^63 before it ever reaches the check this test
// targets, with different (but equally valid, and already correct)
// wording -- see unit-cbor.cpp for coverage of that message.
CHECK_THROWS_AS(json::from_cbor(cbor), json::out_of_range);
json _;
CHECK_THROWS_AS(_ = json::from_cbor(cbor), json::out_of_range);
// regression guard: a genuinely truncated CBOR input must remain discarded
CHECK(json::from_cbor(std::vector<std::uint8_t> {0x9b, 0, 0, 0, 0, 0, 0, 0, 0x02}, true, false).is_discarded());