omanips.hpp

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#ifndef IOF_OUT_MANIPS_HPP_
#define IOF_OUT_MANIPS_HPP_


#include <ostream>


namespace iof 
{


/*  Allow flushing with prints(stream, fmt, arg1..argN, flush) and
    endlining with prints(stream, fmt, arg1..argN, eol). The proper
    way would be to define e.g. 
    ostream& eol(ostream& output) {return output << endl;}
    but VC++ doesn't handle passing function pointers as template 
    parameters in the prints(), tostr(), etc overloads.  So enum 
    is used. 
    */
    
namespace iof_private_manips
{
    enum HideEol {eol};
    enum HideFlush {flush};
};
static const iof_private_manips::HideEol   eol   = iof_private_manips::eol;
static const iof_private_manips::HideFlush flush = iof_private_manips::flush;

// allow sending eol to stream, causing std::endl to be sent
inline std::ostream& 
operator<<(std::ostream& out, iof_private_manips::HideEol)
{
    return out << std::endl;
}
// allow sending flush to stream, causing stream to be flushed
inline std::ostream& 
operator<<(std::ostream& out, iof_private_manips::HideFlush)
{
    return out.flush();
}


} // namespace 


#endif // IOF_OUT_MANIPS_HPP_

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