File: faster-string-find.rst

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.. title:: clang-tidy - performance-faster-string-find

performance-faster-string-find
==============================

Optimize calls to ``std::string::find()`` and friends when the needle passed is
a single character string literal. The character literal overload is more
efficient.

Examples:

.. code-block:: c++

  str.find("A");

  // becomes

  str.find('A');

Options
-------

.. option:: StringLikeClasses

   Semicolon-separated list of names of string-like classes. By default only
   ``::std::basic_string`` and ``::std::basic_string_view`` are considered.
   The check will only consider member functions named ``find``, ``rfind``,
   ``find_first_of``, ``find_first_not_of``, ``find_last_of``, or
   ``find_last_not_of`` within these classes.