On Thursday 02 June 2005 13:54, Sebastian Kaliszewski wrote: > Vinzent Hoefler wrote: > > On Thursday 02 June 2005 13:04, Jamie McCracken wrote: > >>However, in general Pascal has poor developer productivity when > >>compared to modern languages like python and C#. > > > > In terms of _written_ or in terms of _working_ lines of code? :-> > > Both in fact as they are directly correlated.
No, they aren't (or let me put it this way: It depends on what you measure). For instance, studies indicate that there are ten times more errors code in C code then in Ada code once you've delivered the software. > The studies show that in high level languages (C nothwithstanding) > there is very evident but simple correlation -- number of programmer > errors per language construct (typically in not obfuscated code it's > very close to the number of not empty & non comment source lines) is > independent of the language. You must have read different studies. :) A while ago Lockheed Martin switched to SPARK code (which is a statically proven version of Ada) and they claimed this saved them about 80% of development cost compared with former projects of the same size (and we're talking about a flight control system of five million lines of code here). > C++ (pre stl) was worst there, Python, Perl & likes were the best, > Java was not that bad but still about 30% worse thatn Python (C++ was > 100% i.e 2x worse). What did they actually measure? Which languages did they compare. The list above is all (except Python) more or less C-ish or even worse syntax. > The biggest boost to effectivanes was bring by > introducing automated memory management (i.e. getting rid of explicit > memory freeing). Which is something you definitely don't want in large scale realtime systems. > So even languages with ugly C-ish syntax like "Perl > the awful" can beat otherwise elegant & clean languages. Of course they can under certain circumstances. Just as a bubble sort can beat a quick sort algorithm if you feed the "right" input. > Hence > probably the greaytest impact on Objective Pascal productioveness > would come from allowing programmers to declare classes like self > managing (self freeing, not needeing explicit destructions). Maybe, yes. But I'm old school. I like to handle memory myself. And I still need less than 2 MB while a Java VM is still loading its 100 MB foot print into memory. ;-> Vinzent. -- public key: http://www.t-domaingrabbing.ch/publickey.asc _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
