🚀 go-pugleaf

Hi, I'm sure about what the Std says about the lifetime of temp objects (it
says tmp objects may live longer... or something alike).

A sample code. Suppose we have a string object called String, all necessary
constructors/operators are well defined. Now we have three functions

void doSomething(const char*);

String getString();

const char* getCharStar()
{
  return returnString();
}

Now if we do:

          doSomething(getCharStar());

Obvously this code doesn't work under old C++, where temp objects only
live within their scope. My impression is that under STD C++ the tmp
object created by getString() should live long enough so doSomething()
can safely execute.

But apparently some of the compilers I've tried still execute String
destructor when getCharStar() returns.

Wei Peng


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