On Mon, Oct 01, 2007 at 09:30:13AM -0700, Alan Irwin wrote: > On 2007-10-01 13:44+0100 Andrew Ross wrote: > > > > > Alan, > > > > It appears that your recent updates to example 23 to tidy up strings > > have broken compilation using the ifort compiler on my system. This is > > an with the old-ish version (8.1) but it is in wide use. The problem > > seems to be that it doesn't like the string concatenation operator //. > > A quick test program seems to suggest that gfortran (4.1) also doesn't > > allow this. The problem in both cases seems to be that the // gets > > confused with the / for the data statement. g77 works ok. > > > > Statements like > > print *,"Hello"//" World" > > work with all 3 compilers, although ifort adds an extra blank space in > > when concatenating the strings. > > Ugh. Why in the world would they add a blank when concatanating character > strings? That's just an ifort bug in my view.
I agree. Maybe it's fixed in v9. v8 had various interesting features... > > Looks like this might be best avoided for compatibilities sake. > > Thanks for the test results for gfortran (which I no longer have access to > for PLplot tests since PLplot requires a newer gfortran than is installed on > my two boxes) and ifort. > > The old method of continuing a long string in data statements was inserting > an extra blank (at least for g77) corresponding to the continuation. That's > almost as bad as the ifort concatanation issue, but I suppose it could be > justified; there is nothing terminating the string on the first line that is > continued so assuming a trailing blank character there makes a small degree > of sense. Anyhow, I have crossed my fingers and assumed this string > continuation behaviour was universal with Revision 7918. > > This should compile for all the non-g77 compilers, and I have checked it > gives good results (agreement with C) for the g77 case. Could you please > check whether it gives good results for the the non-g77 compilers accessible > to you? > > If it doesn't, then we could go with an assignment statement with string > concatanation rather than continuation. Of course, ifort will give the > wrong answer in that case (extra inserted blank), but to my mind that is > their implementation issue and certainly not the behaviour one would expect > in general with string concatanation. Now compiles and works on ifort and gfortran. Just the f95 issues for example 28 to resolve now. Andrew ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
