forked from OSchip/llvm-project
57 lines
1.6 KiB
ReStructuredText
57 lines
1.6 KiB
ReStructuredText
.. title:: clang-tidy - readability-uppercase-literal-suffix
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readability-uppercase-literal-suffix
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====================================
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`cert-dcl16-c` redirects here as an alias for this check.
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By default, only the suffixes that begin with ``l`` (``l``, ``ll``, ``lu``,
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``llu``, but not ``u``, ``ul``, ``ull``) are diagnosed by that alias.
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`hicpp-uppercase-literal-suffix` redirects here as an alias for this check.
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Detects when the integral literal or floating point (decimal or hexadecimal)
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literal has a non-uppercase suffix and provides a fix-it hint with the uppercase
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suffix.
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All valid combinations of suffixes are supported.
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.. code:: c
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auto x = 1; // OK, no suffix.
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auto x = 1u; // warning: integer literal suffix 'u' is not upper-case
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auto x = 1U; // OK, suffix is uppercase.
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...
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Options
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-------
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.. option:: NewSuffixes
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Optionally, a list of the destination suffixes can be provided. When the
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suffix is found, a case-insensitive lookup in that list is made, and if a
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replacement is found that is different from the current suffix, then the
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diagnostic is issued. This allows for fine-grained control of what suffixes to
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consider and what their replacements should be.
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Example
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^^^^^^^
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Given a list `L;uL`:
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* ``l`` -> ``L``
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* ``L`` will be kept as is.
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* ``ul`` -> ``uL``
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* ``Ul`` -> ``uL``
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* ``UL`` -> ``uL``
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* ``uL`` will be kept as is.
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* ``ull`` will be kept as is, since it is not in the list
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* and so on.
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.. option:: IgnoreMacros
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If this option is set to non-zero (default is `1`), the check will not warn
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about literal suffixes inside macros.
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