/in/foo.cc: In function 'void run(int*, int)':
/in/foo.cc:33:10: error: reference to 'max' is ambiguous
if (m > max)
^~~
/in/foo.cc:4:12: note: candidates are: int max
int n = 0, max = 0, num = 1;
^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
from /usr/include/c++/6/ios:40,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
max(const _Tp& __a, const _Tp& __b)
^~~
/in/foo.cc:34:3: error: reference to 'max' is ambiguous
max = m;
^~~
/in/foo.cc:4:12: note: candidates are: int max
int n = 0, max = 0, num = 1;
^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
from /usr/include/c++/6/ios:40,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
max(const _Tp& __a, const _Tp& __b)
^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:44:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
while (ch = getchar())
^
/in/foo.cc:73:10: error: reference to 'max' is ambiguous
cout << max << endl;
^~~
/in/foo.cc:4:12: note: candidates are: int max
int n = 0, max = 0, num = 1;
^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
from /usr/include/c++/6/ios:40,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
max(const _Tp& __a, const _Tp& __b)
^~~