forked from OSchip/llvm-project
27 lines
872 B
ReStructuredText
27 lines
872 B
ReStructuredText
.. title:: clang-tidy - bugprone-sizeof-container
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bugprone-sizeof-container
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=========================
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The check finds usages of ``sizeof`` on expressions of STL container types. Most
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likely the user wanted to use ``.size()`` instead.
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All class/struct types declared in namespace ``std::`` having a const ``size()``
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method are considered containers, with the exception of ``std::bitset`` and
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``std::array``.
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Examples:
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.. code-block:: c++
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std::string s;
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int a = 47 + sizeof(s); // warning: sizeof() doesn't return the size of the container. Did you mean .size()?
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int b = sizeof(std::string); // no warning, probably intended.
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std::string array_of_strings[10];
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int c = sizeof(array_of_strings) / sizeof(array_of_strings[0]); // no warning, definitely intended.
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std::array<int, 3> std_array;
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int d = sizeof(std_array); // no warning, probably intended.
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