Programming pitfalls

Programming Pitfalls: and how to avoid them

numerics

examples include odd things with floating point convergence of an algo' optimisation flags to the compiler can change he results: Lorenz

save

problems with allocate. Would need to move to a higher level, but more problems if several routines use the same name

assumed-shape array arguments

useful for information hiding but you need an explicit interface (in the calling code) to make use of them