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Fix -Wunneeded-internal-declaration for CustomSentinel in test

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CustomSentinel lives in an anonymous namespace (internal linkage), and
the library's parse loop only ever evaluates the iterator-first
direction (it != last), so the reversed-order friend operator!= was
never referenced. Clang's -Weverything flags such unused internal
declarations as an error. Drop the unused overload; the used direction
is enough to satisfy can_compare_ne's either-order detection.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-07-10 23:25:21 +02:00
parent 146e5e0bc7
commit da95d1184e
1 changed files with 3 additions and 6 deletions
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tests/src/unit-user_defined_input.cpp
+3 -6
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@@ -173,16 +173,13 @@ struct CustomSentinel
{
const char* end_ptr;
// Support both directions for != comparison
// only the iterator-first direction (it != sentinel) is ever evaluated by
// the library's parse loop; a reversed-order overload would go unused and
// trip -Wunneeded-internal-declaration under -Weverything
friend bool operator!=(const char* it, const CustomSentinel& sentinel)
{
return it != sentinel.end_ptr;
}
friend bool operator!=(const CustomSentinel& sentinel, const char* it)
{
return it != sentinel.end_ptr;
}
};
TEST_CASE("Parse with heterogeneous iterator and sentinel types")