[MSDN Library June 1998] Underflow of Floating-Point Values (100%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Reference > C/C++ Language and C++ Libraries > C Language Reference > Implementation-Defined Behavior > Library Functions

[MSDN Library September 1992] Underflow of Floating-Point Values (86.5015166835187%)

Product Documentation > C/C++ 7.0 > C Language Reference > Appendix B Implementation-Defined Behavior > B.14 Library Functions