Header xor_combine.hpp misses dependency

[daniel.kruegler@…]

The following minimal program

#include "boost/random/xor_combine.hpp"

int main() {}

gives a lengthy compiler error (Tested with Visual studio 2008 and mingw gcc 4.8):

boost\random\xor_combine.hpp|144|error: 'os' has not been declared|
boost\random\xor_combine.hpp|144|error: 's' has not been declared|
boost\random\xor_combine.hpp|144|error: ISO C++ forbids declaration of 'BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR' with no type [-fpermissive]|
boost\random\xor_combine.hpp|153|error: 'is' has not been declared|
boost\random\xor_combine.hpp|153|error: 's' has not been declared|
boost\random\xor_combine.hpp|153|error: ISO C++ forbids declaration of 'BOOST_RANDOM_DETAIL_ISTREAM_OPERATOR' with no type [-fpermissive]|
[snip]

which can be traced down to the missing definition of the macro BOOST_RANDOM_DETAIL_OSTREAM_OPERATOR (and presumably some others), which are defined via

#include "boost/random/detail/operators.hpp"

Indeed adding this include before the other one fixes the problem.

[Steven Watanabe]

(In [78512]) Add missing #includes. Fixes #6855.