16 lines
563 B
ReStructuredText
16 lines
563 B
ReStructuredText
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.. title:: clang-tidy - misc-confusable-identifiers
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misc-confusable-identifiers
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===========================
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Warn about confusable identifiers, i.e. identifiers that are visually close to
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each other, but use different Unicode characters. This detects a potential
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attack described in `CVE-2021-42574 <https://www.cve.org/CVERecord?id=CVE-2021-42574>`_.
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Example:
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.. code-block:: text
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int fo; // Initial character is U+0066 (LATIN SMALL LETTER F).
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int 𝐟o; // Initial character is U+1D41F (MATHEMATICAL BOLD SMALL F) not U+0066 (LATIN SMALL LETTER F).
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