egcs-2.91.25 19980425 : spurious warnings with ostream::operator<< and enum

[Laurent Bonnaud <bonnaud at irisa dot fr>]

Hi,

the latest snapshot finds warnings in this program :

#include <iostream>

enum e {e1,e2};

int main()
{
  cout<<e1;
}

% g++ -Wall bug7.cc 
bug7.cc: In function `int main()':
bug7.cc:7: warning: passing `e' chooses `int' over `unsigned int'
bug7.cc:7: warning:   in call to `ostream::operator <<(int)'
bug7.cc:7: warning: passing `e' chooses `int' over `long int'
bug7.cc:7: warning:   in call to `ostream::operator <<(int)'
bug7.cc:7: warning: passing `e' chooses `int' over `long unsigned int'
bug7.cc:7: warning:   in call to `ostream::operator <<(int)'
bug7.cc:7: warning: passing `e' chooses `int' over `unsigned int'
bug7.cc:7: warning:   in call to `ostream::operator <<(int)'

-- 
Laurent.