..\libs\multiprecision\test\test_float_io.cpp(188): warning C4456: declaration of 'val' hides previous local declaration
..\libs\multiprecision\test\test_float_io.cpp(204): warning C4456: declaration of 'val' hides previous local declaration
..\libs\multiprecision\test\test_float_io.cpp(215): warning C4456: declaration of 'val' hides previous local declaration