Copy/paste is sometimes the best choice
"All things being equal" of course. It's magic numbers that is worrying. converting Fortran code for Ahrens/Dieter random variates directly to C, GOTOS and all.
What do we have to test?? Scary. The code may work but Fortran is a different beast from C.
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein