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<title>CMSIS-RTOS: MISRA-C:2004 Compliance Exceptions</title>
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   &#160;<span id="projectnumber">Version 1.03</span>
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   <div id="projectbrief">Real-Time Operating System: API and RTX Reference Implementation.</div>
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<div class="title">MISRA-C:2004 Compliance Exceptions </div>  </div>
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<div class="textblock"><p>CMSIS-RTOS RTX tries to be MISRA-C compliant as much as possible. However, there are some violations in order to simplify the overall code logic and to generate more efficient code.</p>
<p>CMSIS-RTOS RTX generates the following notes, warnings and infos for MISRA-C:2004 rules:</p>
<ul>
<li>Rule 1.1, required, Rule 2.2, required: Non-ANSI reserved word or construct: '//'</li>
<li>Rule 1.2, required: Both sides have side effects</li>
<li>Rule 1.2, required: Unusual pointer cast (incompatible indirect types)</li>
<li>Rule 8.1, required: Function defined without a prototype in scope</li>
<li>Rule 11.1, required, Rule 11.3, advisory: cast from pointer to unsigned int</li>
<li>Rule 11.1, required, Rule 11.3, advisory: cast from unsigned int to pointer</li>
<li>Rule 11.4, advisory: cast from pointer to pointer</li>
<li>Rule 12.11, advisory: Overflow in computing constant for operation: 'unsigned shift left'</li>
<li>Rule 13.7, required, Rule 14.1, required: Constant value Boolean</li>
<li>Rule 14.4, required: Use of goto is deprecated</li>
<li>Rule 14.7, required: Return statement before end of function</li>
<li>Rule 16.10, required: Ignoring return value of function</li>
<li>Rule 17.2, required, Rule 17.3, required: Relational or subtract operator applied to pointers</li>
<li>Rule 19.4, required, Rule 19.10, required: Expression-like macro not parenthesized</li>
<li>Rule 19.15, required: Repeated include file</li>
</ul>
<p>CMSIS-RTOS RTX violates the following MISRA-C:2004 rules:</p>
<ul>
<li>Required Rule 8.5: object/function definition in header file</li>
<li>Required Rule 10.1: Prohibited Implicit Conversion: Non-constant argument to function</li>
<li>Required Rule 10.1: Implicit conversion of complex integer expression</li>
<li>Required Rule 10.3: Cast of complex integer expression to larger type</li>
<li>Required Rule 10.3: Cast of complex expression changes signedness</li>
<li>Required Rule 11.5: attempt to cast away const/volatile from a pointer or reference</li>
<li>Required Rule 12.4: side effects on right hand of logical operator: '&amp;&amp;'</li>
<li>Required Rule 12.4: side effects on right hand of logical operator: '||'</li>
<li>Required Rule 12.5: non-primary expression used with logical operator</li>
<li>Required Rule 14.3: null statement not in line by itself</li>
<li>Required Rule 14.8: left brace expected for while, do...while and for</li>
<li>Required Rule 14.9: left brace expected for if and else</li>
<li>Required Rule 15.3: default missing from switch statement</li>
<li>Required Rule 16.9: function identifier used without '&amp;' or parenthesized parameter list</li>
<li>Required Rule 17.4: pointer arithmetic other than array indexing used</li>
<li>Required Rule 18.4: declaration of union type or object of union type: '{...}'</li>
<li>Required Rule 19.12: Multiple use of '#/##' operators in definition of macro</li>
<li>Required Rule 20.2: Re-use of C90 identifier pattern</li>
<li>Advisory Rule 12.1: dependence placed on C's operator precedence; operators: '+' and '-'</li>
<li>Advisory Rule 12.13: increment or decrement combined with another operator</li>
<li>Advisory Rule 19.13: '#/##' operator used in macro</li>
<li>Advisory Rule 19.7: Function-like macro defined </li>
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