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#include <limits>
#include <stdexcept>
/*
* Credits to:
* http://stackoverflow.com/questions/13150449/efficient-unsigned-to-signed-cast-avoiding-implementation-defined-behavior
*/
template<typename Uint, typename Int>
Int uintToInt(Uint x)
{
if (x <= std::numeric_limits<Int>::max())
return static_cast<Int>(x);
if (x >= std::numeric_limits<Int>::min())
return static_cast<Int>(x - std::numeric_limits<Int>::min())
+ std::numeric_limits<Int>::min();
throw std::overflow_error("given value does not fit integer type");
}
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