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.. title:: clang-tidy - misc-redundant-expression
misc-redundant-expression
=========================
Detect redundant expressions which are typically errors due to copy-paste.
Depending on the operator expressions may be
- redundant,
- always ``true``,
- always ``false``,
- always a constant (zero or one).
Examples:
.. code-block:: c++
((x+1) | (x+1)) // (x+1) is redundant
(p->x == p->x) // always true
(p->x < p->x) // always false
(speed - speed + 1 == 12) // speed - speed is always zero
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