1.. title:: clang-tidy - bugprone-assignment-in-if-condition 2 3bugprone-assignment-in-if-condition 4=================================== 5 6Finds assignments within conditions of `if` statements. 7Such assignments are bug-prone because they may have been intended as equality tests. 8 9This check finds all assignments within `if` conditions, including ones that are not flagged 10by `-Wparentheses` due to an extra set of parentheses, and including assignments that call 11an overloaded `operator=()`. The identified assignments violate 12`BARR group "Rule 8.2.c" <https://barrgroup.com/embedded-systems/books/embedded-c-coding-standard/statement-rules/if-else-statements>`_. 13 14.. code-block:: c++ 15 16 int f = 3; 17 if(f = 4) { // This is identified by both `Wparentheses` and this check - should it have been: `if (f == 4)` ? 18 f = f + 1; 19 } 20 21 if((f == 5) || (f = 6)) { // the assignment here `(f = 6)` is identified by this check, but not by `-Wparentheses`. Should it have been `(f == 6)` ? 22 f = f + 2; 23 } 24