On 2009-04-27 09:01+0200 Arjen Markus wrote: > [...]but subroutine exit() is not an official intrinsic subroutine. > I think it is particular to gfortran/g77/g95.This could cause trouble > for other compilers (or they may supply similar routines). I will have > to check it (*), but I am not overly enthousiastic about such > extensions, however common. (Fortran programs normally exit with a zero > status anyway). > > Regards, > > Arjen > > (*) ifort under Linux accepts it as does my more or less ancient CVF > compiler. Those are the non-GNU-decendent compilers I have easy access > to. So I guess this will work ...
Yes it does. Here is why. According to the Portland group documentation for their fortran compiler, "exit" (to break out of loops) is part of the fortran 95 standard while "call exit(status)" (to stop the application with a status code) is a VAX/VMS Fortran extension they support. VAX/VMS Fortran was extremely common during the 80's so there is a lot of legacy Fortran code around that uses those extensions such as "call exit(status)". Therefore, I think virtually every single Fortran compiler (including gfortran, the Intel compiler, the Portland Group compiler, and the CVF compiler from our joint knowledge) supports such extensions. I believe the ubiquity of VAX/VMS Fortran support in present-day fortran compilers is the reason we have never had any complaints about "call exit(status)" that occurs throughout our f95 examples. That is until Geoffrey's bug report. However the fundamental cause there turned out to be due to a bug in the implementation of the VAX/VMS extension in an old version of gfortran which Andrew has now worked around (assuming Geoffrey verifies that workaround). Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
