Recent changes to bugs

Error in function gnuplot_load

Alessio Siravo — Mon, 30 Jul 2012 14:27:30 -0000

Hi, I think I have found an error in the gnuplot_fortran95.f90 file at lines 1374/1381 (function gnuplot_load) in the conditions of the if statements.
This is the original code:

....
ierror=fortran_access(trim(loadfile),0)
if(status.ne.0) then
status=-1
call assert_error('gnuplot_load','cannot find the specified load file '//trim(loadfile),status)
return
end if

ierror=fortran_access(trim(loadfile),4)
if(status.ne.0) then
status=-2
call assert_error('gnuplot_load','you do not have read permissions for the specified load&
&file '//trim(loadfile),status)
return
end if
....

I think that the conditions in the if statement should be:
if(ierror.ne.0) then ...
in both of the cases.

I've changed the code and compiled it with gfortran 4.6 and it works well!

I hope this could help someone.

datatype dpc missing

Lawrence Selvy — Tue, 06 Sep 2011 12:01:24 -0000

I have compiled the libraries in openSUSE 11.4 using the gfortran. Everything compiled ok. Tried compiling your testbench and it complains that the dpc datatype is not defined.

gfortran -o gnuplot_fortran95_testbench gnuplot_fortran95_testbench.f90 -lfortranposix -lgnuplotfortran
gnuplot_fortran95_testbench.f90:25.37:

use datatypes, only : i4b,dp,dpc,lgc
1
Error: Symbol 'dpc' referenced at (1) not found in module 'datatypes'
gnuplot_fortran95_testbench.f90:37.19:

complex(dpc), dimension(:), allocatable :: cp
1
Error: Symbol 'dpc' at (1) has no IMPLICIT type
gnuplot_fortran95_testbench.f90:74.17:

allocate(cp(numpoints), stat=status)
1
Error: Allocate-object at (1) is not a nonprocedure pointer or an allocatable variable
gnuplot_fortran95_testbench.f90:92.47:

cp(i)=cmplx(cos(x(i)),sin(x(i)),dpc)
1
Error: Unexpected STATEMENT FUNCTION statement at (1)
gnuplot_fortran95_testbench.f90:140.125:

x,y1,'sin(x)',y2=y2,y2title='cos(x)',y3=y3,y3title='atan(x)',y4=y4,y4title='sqr
1
Error: Unterminated character constant beginning at (1)
gnuplot_fortran95_testbench.f90:311.37:

deallocate(x,y,y1,y2,y3,y4,cp,z1,z2,z3,z4)
1
Error: Allocate-object at (1) is not a nonprocedure pointer or an allocatable variable
gnuplot_fortran95_testbench.f90:198.57:

status=gnuplot_plotcomplex(ptr_gctrl,numpoints,cp,'A circle ?')
1
Error: Symbol 'cp' at (1) has no IMPLICIT type

The datatype.mod is attached.

Seg faults during gnuplot calls; no Compile errors

Anonymous — Wed, 23 Jul 2008 15:26:02 -0000

I am using the INtel Fortran Compiler on a Debian installation. I have installed all the necessary
libraries mentioned in the installation instructions. But I was
getting segmentation faults for the simplest gnuplot calls, and was
wondering if you could help me out with it.

I just tried plotting 2 columns of a simple array as follows:

**********
PROGRAM Plot

USE datatypes
USE gnuplot_module_data
USE gnuplot_module

IMPLICIT NONE

REAL(dp) :: A(5,2)=(/1,2,3,4,5,2,4,6,8,10/)

TYPE(GNUPLOT_CTRL), POINTER :: g_ctrl

INTEGER :: Status
g_ctrl = gnuplot_init('-persist')

Status = gnuplot_plot2d(g_ctrl,5,A(:,1),A(:,2))

Status = gnuplot_close(g_ctrl)

END PROGRAM Plot
*********

I compiled with the following command :

$ ifort "%filename" /opt/intel/fc/10.0.026/lib/libgnuplotfortran.so
/opt/intel/fc/10.0.026/lib/libfortranposix.so

and

$ ./a.out

gave the messages :

gnuplot_init : current display identified as :0 {2}
No checking of -persist as a valid X option will be done ...
Executing gnuplot -persist (16) with option w (1) ...
Opened pipe for GNUPlot-Fortran95 IPC : file descriptor 4
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
a.out 080AC0FF Unknown Unknown Unknown
a.out 0804DB71 Unknown Unknown Unknown
libc.so.6 B7E11450 Unknown Unknown Unknown
a.out 0804DAD1 Unknown Unknown Unknown

Further, running gdb gave me :

Program received signal SIGSEGV, Segmentation fault.
0x080ac12f in both.aligned ()
Current language: auto; currently asm

I'd much appreciate any pointers. Thanks.

--
Kumar Ravichandran

Graduate Research Assistant
Department of Aerospace Engineering
University of Maryland
College Park, MD.

gnuplot_resetsession bug

Anonymous — Sun, 14 Oct 2007 09:00:46 -0000

Hi!

First of all thanks for the great gnuplotfortran tool. Maybe, there is a bug in the gnuplot_resetsession tool. Although the result is 0 (all should be right), it still counts the gnuplot files up to 65 or so where it stops due to the limitation GP_MAX_TMP_FILES.

Also, this variable can not be changed since it is declared as paramter (that's at least what Intel Fortran 9.1 is saying).

I am using Ubuntu 7.04 and, as I said, Intel Fortran 9.1.

Thanks for your help,

Dominikus
siegfried_ohneland@gmx.net

lot of warnings while compiling with gfortran

Fri, 07 Oct 2005 05:55:09 -0000

Hi
On Debian Sid, using

$gfortran -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f95,objc,ada,treelang
--prefix=/usr --enable-shared --with-system-zlib
--libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls
--program-suffix=-4.0 --enable-__cxa_atexit
--enable-libstdcxx-allocator=mt --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-gc=boehm
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre
--enable-mpfr --disable-werror
--enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.2 (Debian 4.0.2-2)

I am getting the following warnings when compiling with
gfortran and using -Wall option. There are no warning
when -Wall flag is not used. However the gcc manual
advises to compile programs with -Wall option. So it is
a good idea to get rid of these warnings in gnuplotfortran.

I executed the following command

$gfortran -O2 -Wall -c gnuplot_fortran95.f90 2>&1 | tee
warnings.log

and the warnings.log is attached in this email.

wrong arguments in posixwrapper.c fortrangetchar

Anonymous — Fri, 15 Jul 2005 17:14:38 -0000

Following discussion with Andy Vaught, I believe
following line in posixwrapper.c:

void fortrangetchar_(int* readchar, int* status)

should be:

void fortrangetchar_(char* readchar, int* status)

Original line causes bus error with g95 on Sun, but
passes many other compilers on Sun and Linux...

Tomasz
tomasz@ecn.purdue.ecn

make doc gives errors

Tue, 31 May 2005 20:07:49 -0000

Using gnuplotfortran 0.2.2, and the default Makefile
provided, I am unable to execute 'make doc' command. I
dont know enough of texi2dvi to debug the problem. I
was hoping this would be fixed atleast in the next release.

After uncompiling the source, If I do

$make doc
makeinfo --html gnuplotfortran.texi
makeinfo gnuplotfortran.texi
texi2pdf gnuplotfortran.texi
This is pdfeTeXk, Version 3.14159-1.10b-2.1 (Web2C 7.4.5)
file:line:error style messages enabled.
entering extended mode
(/home/software/compileHere/gnuplotfortran-0.2.2/gnuplotfortran.texi{/usr/share
/texmf/pdftex/config/pdftex.cfg}
(/usr/share/texmf/tex/texinfo/texinfo.tex
Loading texinfo [version 2004-04-07.08]: Basics, pdf,
(/usr/share/texmf/pdftex/plain/misc/pdfcolor.tex)
fonts, page headings,
tables, conditionals, indexing, sectioning, toc,
environments, defuns, macros,
cross references, insertions,
(/usr/share/texmf/tex/generic/dvips/epsf.tex)
localization, and turning on texinfo input format.)
[1{/var/lib/texmf/dvips/con
fig/pdftex.map}] [2] [-1] Chapter 1 Chapter 2 [1]
Chapter 3 [2] Chapter 4
[3] [4] Cross reference values unknown; you must run
TeX again. [5] Chapter 5
[6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]
[18] [19] [20] [21]
[22] [23] [24]
Underfull \hbox (badness 10000) in paragraph at lines
1646--1647
[]/cmr10@10.95pt/Plots a spec-i-fied equa-tion r=f(t)
in po-lar co-or-di-nates
- in-voke gnu-
[25] [26] [27] [28] [29] [30] Chapter 6 [31] Appendix A
[32] [33] [34] [35]
[36] [37] [38] (Global Variables) [39] (Function Index)
[40] (Concept Index)
[41] [42] )
(see the transcript file for additional
information){/usr/share/texmf/dvips/tet
ex/09fbbfac.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmsltt10.pfb>{/usr/sha
re/texmf/dvips/tetex/f7b6d320.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmsl
10.pfb></usr/share/texmf/fonts/type1/bluesky/latex/lcircle1.pfb>{/usr/share/tex
mf/dvips/tetex/0ef0afca.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmcsc10.pf
b></usr/share/texmf/fonts/type1/bluesky/cm/cmtt9.pfb></usr/share/texmf/fonts/ty
pe1/bluesky/cm/cmr9.pfb></usr/share/texmf/fonts/type1/bluesky/cm/cmr7.pfb></usr
/share/texmf/fonts/type1/bluesky/cm/cmb10.pfb></usr/share/texmf/fonts/type1/blu
esky/cm/cmtt10.pfb>{/usr/share/texmf/dvips/tetex/74afc74c.enc}</usr/share/texmf
/fonts/type1/bluesky/cm/cmti10.pfb>{/usr/share/texmf/dvips/tetex/bbad153f.enc}<
/usr/share/texmf/fonts/type1/bluesky/cm/cmsy10.pfb></usr/share/texmf/fonts/type
1/bluesky/cm/cmr10.pfb></usr/share/texmf/fonts/type1/bluesky/cm/cmbx12.pfb>
Output written on gnuplotfortran.pdf (45 pages, 219369
bytes).
Transcript written on gnuplotfortran.log.
This is pdfeTeXk, Version 3.14159-1.10b-2.1 (Web2C 7.4.5)
file:line:error style messages enabled.
entering extended mode
(/home/software/compileHere/gnuplotfortran-0.2.2/gnuplotfortran.texi{/usr/share
/texmf/pdftex/config/pdftex.cfg}
(/usr/share/texmf/tex/texinfo/texinfo.tex
Loading texinfo [version 2004-04-07.08]: Basics, pdf,
(/usr/share/texmf/pdftex/plain/misc/pdfcolor.tex)
fonts, page headings,
tables, conditionals, indexing, sectioning, toc,
environments, defuns, macros,
cross references, insertions,
(/usr/share/texmf/tex/generic/dvips/epsf.tex)
localization, and turning on texinfo input format.)
(./gnuplotfortran.aux)
[1{/var/lib/texmf/dvips/config/pdftex.map}] [2]
(./gnuplotfortran.toc [-1])
[-2] (./gnuplotfortran.toc
./gnuplotfortran.toc:56: Missing number, treated as zero
./gnuplotfortran.toc:56: Missing $ inserted
) (./gnuplotfortran.toc)
/home/software/compileHere/gnuplotfortran-0.2.2/gnuplotfortran.texi:38:
Missing
$ inserted
Chapter 1 [1] Chapter 2 [2] Chapter 3 [3] Chapter 4 [4]
[5] [6] Chapter 5
[7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]
[18] [19] [20] [21]
[22] [23] [24] [25]
Underfull \hbox (badness 10000) in paragraph at lines
1646--1647
[]/cmr10@10.95pt/Plots a spec-i-fied equa-tion r=f(t)
in po-lar co-or-di-nates
- in-voke gnu-
[26] [27] [28] [29] [30] [31] Chapter 6 [32] Appendix A
[33] [34] [35] [36]
[37] [38] [39] (Global Variables) [40]
(./gnuplotfortran.vrs) (Function Index)
[41] (./gnuplotfortran.fns) (Concept Index) [42]
(./gnuplotfortran.cps)
[43] )
(see the transcript file for additional
information){/usr/share/texmf/dvips/tet
ex/74afc74c.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmti9.pfb>{/usr/share/
texmf/dvips/tetex/09fbbfac.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmsltt1
0.pfb>{/usr/share/texmf/dvips/tetex/f7b6d320.enc}</usr/share/texmf/fonts/type1/
bluesky/cm/cmsl10.pfb></usr/share/texmf/fonts/type1/bluesky/latex/lcircle1.pfb>
</usr/share/texmf/fonts/type1/bluesky/cm/cmtt9.pfb></usr/share/texmf/fonts/type
1/bluesky/cm/cmr9.pfb></usr/share/texmf/fonts/type1/bluesky/cm/cmr7.pfb></usr/s
hare/texmf/fonts/type1/bluesky/cm/cmb10.pfb></usr/share/texmf/fonts/type1/blues
ky/cm/cmtt10.pfb>{/usr/share/texmf/dvips/tetex/0ef0afca.enc}</usr/share/texmf/f
onts/type1/bluesky/cm/cmcsc10.pfb></usr/share/texmf/fonts/type1/bluesky/cm/cmti
10.pfb></usr/share/texmf/fonts/type1/bluesky/cm/cmbxti10.pfb>{/usr/share/texmf/
dvips/tetex/bbad153f.enc}</usr/share/texmf/fonts/type1/bluesky/cm/cmsy10.pfb></
usr/share/texmf/fonts/type1/bluesky/cm/cmr10.pfb></usr/share/texmf/fonts/type1/
bluesky/cm/cmbx12.pfb>
Output written on gnuplotfortran.pdf (47 pages, 273615
bytes).
Transcript written on gnuplotfortran.log.
/usr/bin/texi2dvi: pdfetex exited with bad status,
quitting.
/usr/bin/texi2dvi: see gnuplotfortran.log for errors.
make: *** [doc] Error 1

-------------------- my system information
-------------------------------------
using Debian GNU/Linux unstable (sid) distribution.

$uname -a
Linux kusumanchi 2.6.9-1-686 #1 Thu Nov 25 03:48:29 EST
2004 i686 GNU/Linux

$texi2dvi --version
texi2dvi (GNU Texinfo 4.7) 1.3

$makeinfo --version
makeinfo (GNU texinfo) 4.7

I cannot think of any other information that could be
useful. But can provide upon request.

regards
raju

variable dp declared twice in gnuplot_module

Tue, 31 May 2005 17:32:29 -0000

Upon changing the default compiler to gfortran, when I
compiled gnuplotfortran 0.2.2, I got the following error.

$make
gfortran -shared gnuplot_fortran95.f90 -o
libgnuplotfortran.so
In file gnuplot_fortran95.f90:197

use gnuplot_module_data,only :
gnuplot_ctrl,i4b,dp,lgc,dp,GP_CMD_SIZE,M

1
Error: Symbol 'dp' referenced at (1) not found in
module 'gnuplot_module_data'
make: *** [libgnuplotfortran.so] Error 1

This error is not reproducible with ifort (to my
knowledge). The cause and remedy for this error is
provided below.

In gnuplotfortran 0.2.2, in the file
gnuplot_fortran95.f90, in line 197 the variable dp is
declared twice. The actual line is

use gnuplot_module_data,only :
gnuplot_ctrl,i4b,dp,lgc,dp,GP_CMD_SIZE,MAXLENGTH,BAD_SIGNAL,&

But in fact it should be

use gnuplot_module_data,only :
gnuplot_ctrl,i4b,dp,lgc,GP_CMD_SIZE,MAXLENGTH,BAD_SIGNAL,&

The following patch fixes this problem.

$diff -c gnuplot_fortran95.f90 modified.f90 > patch.txt

patch.txt is attached in this mail. This patch can be
applied to by using

$patch gnuplot_fortran95.f90 < patch.txt

hope that helps
raju

gnuplotfortran does not compile with gfortran

Mon, 21 Mar 2005 02:49:05 -0000

Hi
I am using gnuplotfortran-0.2.tar.bz2 and gfortran
4.0.0 on a Debian system (sid) with 2.6.9-1-686 kernel.
When I compile the gnuplotfortran, I am getting the
following error.

$make
gfortran -shared gnuplot_fortran95.f90 -o
libgnuplotfortran.so
In file gnuplot_fortran95.f90:2141

p))//'" u 1:2
1
Error: Unterminated character constant beginning at (1)
make: *** [libgnuplotfortran.so] Error 1

My only changes to the default makefile are

F95C=gfortran
F95DEBUGOPTIONS=-g

I think the error is due to the fact the line 2141 is
too long. I tried splitting the line 2141 into two
lines and then it compiles fine. Just wanted to let you
know in case something serious going on.

Hope this helps
raju

webpages

Anonymous — Tue, 23 Nov 2004 07:23:37 -0000

the menue on the left opens windows via javascript,
which makes them unviewable with lynx and they also
don't play nice with tabbed browsing in firefox...
would be nice, if they where changed to "normal" links.

a contact adress on the homepage would be nice too

and isn't a sf logo requiered?

last not least: the fortran interface is a cool idea :)
keep it going

Thanks