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Niels Lohmann
5bc24e876b
Four CI failures, all in the new test code: - GCC (-Werror=useless-cast): drop the `json(...)` wrapper around `json::parse(...)`, which already returns a `json`. - GCC (-Werror=unused-result): assign the discarded `json::parse()` result to a dummy, the idiom used elsewhere in the test suite, and catch `json::parse_error&` for consistency. - clang-tidy (google-default-arguments): remove the default argument from the `pbackfail()` override; `sungetc()` supplies the base declaration's default. - MSVC (bad allocation): `no_putback_streambuf::underflow()` set a one-character get area without advancing `m_pos`, so an implementation whose `istream::get` peeks before it bumps re-read the same character forever. Keep no get area at all: `underflow()` peeks, `uflow()` consumes, and `sungetc()` still always lands in `pbackfail()`, which is what the test needs. Signed-off-by: Niels Lohmann <mail@nlohmann.me>