[Bug c++/55446] [4.7/4.8 Regression] array new with size zero vanishes from object code

[harald at gigawatt dot nl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55446



Harald van Dijk <harald at gigawatt dot nl> changed:



           What    |Removed                     |Added

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                 CC|                            |harald at gigawatt dot nl



--- Comment #6 from Harald van Dijk <harald at gigawatt dot nl> 2012-11-24 
09:28:44 UTC ---

A compile-only test for this can be



struct S { S(); };

void f(S *);

void g() {

  S *s = new S[0];

  f(s);

}



which causes a bogus warning:



test.cc: In function 'void g()':

test.cc:5:7: warning: 's' is used uninitialized in this function

[-Wuninitialized]