А>int* p=0;
А>int& r=*p;
А>r=0;
А>

"ComeauTest.c", line 4: error: this declaration has no storage class or type
          specifier, Wild guess: Should this be in a function?
          Wild Guess: You're using export but not using Comeau C++ 4.3
  r=0; 
  ^

"ComeauTest.c", line 4: error: variable "r" has already been defined
  r=0; 
  ^

2 errors detected in the compilation of "ComeauTest.c".

test.cpp:4: ISO C++ forbids declaration of `r' with no type
test.cpp:4: conflicting types for `int r'
test.cpp:3: previous declaration as `int&r'

O>for (vector<myclass>::iterator it = myvector.begin(); it != myvector.end(); ++it) 
O>// я специально не использую foreach, потому что ненавижу STL
O>{...}
O>

     error: identifier "vector" is undefined

 // я специально не использую foreach, потому что foreach - это в C#, а в STL - for_each
 // и вообще, больше самодельных 50 функционалов на 1 cpp-файл - это много

А>>int* p=0;
А>>int& r=*p;
А>>r=0;
А>>

VDO>"ComeauTest.c", line 4: error: this declaration has no storage class or type
VDO>          specifier, Wild guess: Should this be in a function?
VDO>          Wild Guess: You're using export but not using Comeau C++ 4.3
VDO>  r=0; 
VDO>  ^

VDO>"ComeauTest.c", line 4: error: variable "r" has already been defined
VDO>  r=0; 
VDO>  ^

VDO>2 errors detected in the compilation of "ComeauTest.c".
VDO>

void foo()
{
  int* p=0;
  int& r=*p;
  r=0;
}