On 25 Sep 97 at 3:21, Dirk Geppert wrote: > is it possible to link existing libraries (C and/or Fortran) > to an interactive root session and if yes, how? Yes, (For C/C++ it is VERY way we recommend to use) you need to produce the share (dynamic) library from those and this library must contain the ROOT dictionary (You are required to apply ROOTCINT utility for that (see our root/test/Makefile and http://root.cern.ch/root/CintGenerator.html). ( By the way I've just realizex this scetion might confuse user. I'd like to mention that this section should be changed. It said that " . . . To make this class accessible via the command line we need to link it with a small ROOT main program, main.C, that creates and calls the command line interpreter: . . . " But it MUST be first " . . . To make this class accessible via the command line we need to create a dynamic/share library and load it into intercative ROOT session . . . " been followed by a text of the Makefile from the Root/test distribution !!! Since RootCint can not produce a dictionary from Fortran source directly one is required to create a small C wrapper functions or C++ wrapper class calling those Fortran functions (for CERNLIB one may apply CFortran set of the headers file to simplify things). (NOTE for Windows user: to be able to call "FORTRAN" wrapping functions one needs to launch a special version of ROOT: It is called Root4For.exe and it is available along with a normal "pure C/C++" ROOT.exe from Root/bin as well. It is linked with Microsoft Fortran Powerstaion v4.0 I/O Run-time system and assumes MSFRT40.DLL on the PATH). Probably it is a point for ROOT HOWTO Web page. (I believe some of our users did this already and might be contribute). With my best regards, Valery Dr. Valeri Faine (Valery Fine) ------------ ------------- Phone: +41 22 767 4921 CERN FAX : +41 22 767 7155 CH-1211 Geneva, 23 mailto:fine@mail.cern.ch Switzerland http://nicewww.cern.ch/~fine
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