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Make JSON_STRICT_NUL_HANDLING part of the ABI tag

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JSON_STRICT_NUL_HANDLING (#5534) changes the bodies of inline functions:
the lexer's handling of '\0' and input_adapter() for char arrays. So
translation units compiled with and without it define the same functions
differently, an ODR violation - the case the ABI tag exists for, as with
JSON_BRACE_INIT_COPY_SEMANTICS (_bics). It now appends _snul to the inline
namespace. The macro is new in 3.13.0, so no existing namespace changes.

Its default moves to abi_macros.hpp, and it is only #undef'd without
JSON_TEST_KEEP_MACROS, as for the other ABI macros. The ABI config tests,
the namespace docs, the macro's docs and the Natvis file cover the new tag.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-24 17:05:40 +02:00
committed by GitHub
parent 2e91641de2
commit 2a60c975bc
12 changed files with 1038 additions and 24 deletions
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tools/generate_natvis/generate_natvis.py
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@@ -20,7 +20,7 @@ if __name__ == '__main__':
namespaces = ['nlohmann']
abi_prefix = 'json_abi'
abi_tags = ['_diag', '_ldvcmp', '_dp', '_bics']
abi_tags = ['_diag', '_ldvcmp', '_dp', '_bics', '_snul']
version = '_v' + args.version.replace('.', '_')
inline_namespaces = []