Rule Definition
The use of bool operands with other operators is unlikely to be meaningful (or intended). This rule allows the detection of such uses, which often occur because of the logical operators (&&, || and !) can be easily confused with the bitwise operators (&, | and ~).

Remediation
Don't use bool expression as operands to buit-in operators other than =, &&, ||, !, ==, !=, unary & and the conditional operator

Violation Code Sample

bool b1 = true;
bool b2 = false;
int8_t s8a;
if ( b1 & b2 ) // Non-compliant
if ( b1 < b2 ) // Non-compliant
if ( ~b1 ) // Non-compliant
if ( b1 ^ b2 ) // Non-compliant

Fixed Code Sample

if ( b1 == false ) // Compliant
if ( b1 == b2 ) // Compliant
if ( b1 != b2 ) // Compliant
if ( b1 && b2 ) // Compliant
if ( !b1 ) // Compliant
s8a = b1 ? 3 : 7; //Compliant

MISRA C++ 2008, Rule 4–5–1: Expressions with type bool shall not be used as operands to built-in operators other than the assignment operator =, the logical operators &&, ||, !, the equality operators == and !=, the unary & operator, and the conditional operator. AUTOSAR, C++, 2014, Rule M4-5-1: Expressions with type bool shall not be used as operands to built-in operators other than the assignment operator =, the logical operators &&, ||, !, the equality operators == and ! =, the unary & operator, and the conditional operator.