Hi all. In libstdc++-2.90.6/testsuite/26_numerics/modf_float.cc, it checks to see whether modf will work with floats. My make check fails because (I think) it says that it works on doubles, not floats. My Stroustrup book says that modf() is for doubles, not floats. I assume the test is correct. What is being tested in this file?