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.. title:: clang-tidy - abseil-string-find-str-contains
abseil-string-find-str-contains
===============================
Finds ``s.find(...) == string::npos`` comparisons (for various string-like types)
and suggests replacing with ``absl::StrContains()``.
This improves readability and reduces the likelihood of accidentally mixing
``find()`` and ``npos`` from different string-like types.
By default, "string-like types" includes ``::std::basic_string``,
``::std::basic_string_view``, and ``::absl::string_view``. See the
StringLikeClasses option to change this.
.. code-block:: c++
std::string s = "...";
if (s.find("Hello World") == std::string::npos) { /* do something */ }
absl::string_view a = "...";
if (absl::string_view::npos != a.find("Hello World")) { /* do something */ }
becomes
.. code-block:: c++
std::string s = "...";
if (!absl::StrContains(s, "Hello World")) { /* do something */ }
absl::string_view a = "...";
if (absl::StrContains(a, "Hello World")) { /* do something */ }
Options
-------
.. option:: StringLikeClasses
Semicolon-separated list of names of string-like classes. By default includes
``::std::basic_string``, ``::std::basic_string_view``, and
``::absl::string_view``.
.. option:: IncludeStyle
A string specifying which include-style is used, `llvm` or `google`. Default
is `llvm`.
.. option:: AbseilStringsMatchHeader
The location of Abseil's ``strings/match.h``. Defaults to
``absl/strings/match.h``.
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