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Home » U++ TheIDE » U++ TheIDE: Other Features Wishlist and/or Bugs » bug in latest svn
Re: bug in latest svn [message #15681 is a reply to message #15679] Sun, 04 May 2008 17:04 Go to previous messageGo to previous message
Novo is currently offline  Novo
Messages: 1358
Registered: December 2006
Ultimate Contributor
mdelfede wrote on Sun, 04 May 2008 06:17

Returning a String() value is less efficient, but guarantees that string is not destroyed on function return before the value is taken.



Isn't

return String();


equal to

String anonymous_value;
return anonymous_value;


?

const String& GetCppFile(int i);

String value1 = GetCppFile(0); // Case A
const String& value2 = GetCppFile(0); // Case B


In case A GetCppFile() will work correctly.
Case B will introduce a bug.

IMHO, returning "const String&" is just not thread-safe. Object can be deleted in transition.


Regards,
Novo
 
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