TheRock/compiler/amd-llvm/clang-tools-extra/docs/clang-tidy/checks/readability/math-missing-parentheses.rst

.. title:: clang-tidy - readability-math-missing-parentheses

readability-math-missing-parentheses
====================================

Check for missing parentheses in mathematical expressions that involve
operators of different priorities.

Parentheses in mathematical expressions clarify the order
of operations, especially with different-priority operators. Lengthy or
multiline expressions can obscure this order, leading to coding errors.
IDEs can aid clarity by highlighting parentheses. Explicitly using parentheses
also clarifies what the developer had in mind when writing the expression.
Ensuring their presence reduces ambiguity and errors, promoting clearer and
more maintainable code.

Before:

.. code-block:: c++

  int x = 1 + 2 * 3 - 4 / 5;


After:

.. code-block:: c++

  int x = 1 + (2 * 3) - (4 / 5);