BoundaryMethod.cc
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BoundaryMethod.cc
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	#include <cassert>
	#include <cstring>
	#include <sstream>
	#include <stdexcept>

	#include "npstat/stat/BoundaryMethod.hh"

	static const char* names[] = {
	"BM_TRUNCATE",
	"BM_STRETCH",
	"BM_FOLD"
	};

	static const unsigned nNames = sizeof(names)/sizeof(names[0]);

	namespace npstat {
	BoundaryMethod parseBoundaryMethod(const char* methodName)
	{
	for (unsigned i=0; i<nNames; ++i)
	if (strcmp(names[i], methodName) == 0)
	return static_cast<BoundaryMethod>(i);
	std::ostringstream os;
	os << "In npstat::parseBoundaryMethod: invalid argument \""
	<< methodName << "\". Must be one of "
	<< validBoundaryMethodNames() << '.';
	throw std::invalid_argument(os.str());
	}

	const char* boundaryMethodName(BoundaryMethod m)
	{
	const unsigned i = static_cast<unsigned>(m);
	assert(i < nNames);
	return names[i];
	}

	std::string validBoundaryMethodNames()
	{
	std::ostringstream os;
	for (unsigned i=0; i<nNames; ++i)
	{
	if (i == 0)
	os << names[i];
	else if (i == nNames - 1)
	os << " or " << names[i];
	else
	os << ", " << names[i];
	}
	return os.str();
	}
	}