CPointerType[type] is a symbolic representation of a type that is a pointer to a type.
CSwitch[cond, statements] is a symbolic representation of a switch statement.
CTypedef[type, var] is a symbolic representation of a type declaration.
StirlingSecond[n, k] returns the Stirling number of the second kind.
Algebra`PolynomialContinuedFractions` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
Algebra`ReIm` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6759.
DiscreteMath`Tree` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6764.
Graphics`ThreeScript` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6769.
Miscellaneous`RealOnly` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
NumberTheory`Rationalize` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...