MISRA.NS.GLOBAL

Declaring names into appropriate namespaces reduces the names found during lookup, helping to ensure that the names found meet developer expectations.

MISRA-C++ Rule 7-3-1 (required): The global namespace shall only contain main, namespace declarations and extern "C" declarations.

Rationale

The types defined for compliance with Rule 3–9–2 may also be in the global namespace.Using directives and declarations may also be in the global namespace. MISRA.NS.GLOBAL.USING is intended for detecting such statements.

Exception

The types defined for compliance with Rule 3—9—2 may also be in the global namespace.

Example

void f1 ( int32_t );    // Non-compliant

int32_t x1;             // Non-compliant
namespace
{
   void f2 ( int32_t ); // Compliant
   int32_t x2;          // Compliant
}
namespace MY_API
{
   void b2 ( int32_t ); // Compliant
   int32_t x2;          // Compliant
}
int32_t main ( )        // Compliant
{
}