bdlb::Variant_ReturnAnyTypeUtil< TYPE > Struct Template Reference

#include <bdlb_variant.h>

List of all members.

Static Public Member Functions
static TYPE	doNotCall (TYPE *dummy)
static TYPE	doNotCall ()

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Detailed Description

template<class TYPE>
struct bdlb::Variant_ReturnAnyTypeUtil< TYPE >

This struct provides a function that returns an (invalid) instance of any type. It is meant to allow clients to express:

      template <RESULT_TYPE>
      RESULT_TYPE foo()
      {
          // ...
    
          // The following 'return' is unreachable, but is required for
          // compilation.
    
          return Variant_ReturnAnyTypeUtil::doNotCall();
      }

where RESULT_TYPE may be void. Note that while such a return statement is not required by the C++ standard, the lack of such a return statement causes a warning (or error) with many compilers.

See Component bdlb_variant

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Member Function Documentation

template<class TYPE >

static TYPE bdlb::Variant_ReturnAnyTypeUtil< TYPE >::doNotCall

(

TYPE *

dummy

)

[static]

Return the specified *dummy.

template<class TYPE >

static TYPE bdlb::Variant_ReturnAnyTypeUtil< TYPE >::doNotCall

(

)

[static]

Return a TYPE object.

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The documentation for this struct was generated from the following file:

• bdlb_variant.h