http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49386
Summary: #undef min/max is dependent on order if #include
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: gintensub...@gmail.com
testsuite ( bug.cc ) :
#include <iostream> // any C++ header not including <algorithm>
#define max( a, b ) bad_macro
#include <algorithm>
output:
In file included from
/usr/local/gcc47-20110604/lib/gcc/i686-pc-cygwin/4.7.0/../../../../include/c++/4.7.0/bits/stl_algo.h:62:0,
from
/usr/local/gcc47-20110604/lib/gcc/i686-pc-cygwin/4.7.0/../../../../include/c++/4.7.0/algorithm:63,
from bug.cc:4:
/usr/local/gcc47-20110604/lib/gcc/i686-pc-cygwin/4.7.0/../../../../include/c++/4.7.0/bits/algorithmfwd.h:358:41:
error: macro "max" passed 3 arguments, but takes just 2
/usr/local/gcc47-20110604/lib/gcc/i686-pc-cygwin/4.7.0/../../../../include/c++/4.7.0/bits/algorithmfwd.h:354:5:
error: template declaration of 'const _Tp& std::bad_macro'
/usr/local/gcc47-20110604/lib/gcc/i686-pc-cygwin/4.7.0/../../../../include/c++/4.7.0/bits/algorithmfwd.h:358:5:
error: template declaration of 'const _Tp& std::max'
note:
The same error occurs in case of including <limits>.
