llvm dev - Dec 2016 - DeclarationName and the StringRef.

Hi Guys ,

We have the function that accepts StringRef and construct
the DeclarationName instance .

Currenlty we are achieving the same as ,the code snap

void appendExtern(StringRef Sr)
{
 char *ExternChar = const_cast<char *> (Sr.data());
 *Ptr =reinterpret_cast<void *>(ExternChar);

  this->ExternName = DeclarationName::getFromOpaquePtr(Ptr);

}

There is, any better way of achieving this  ,because the above code is
crashing intermittently ?

Thank you  and any help here appreciated.
~Umesh
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