fortran error undefined reference to subroutine Pylesville Maryland

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fortran error undefined reference to subroutine Pylesville, Maryland

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I wrapped my F77 function like this: module mod contains FUNCTION FUNC(PARAM) ... I want to use a fortran90 program structure which is somewhat like shown below, but when compiling I always get this compiler message: /home/chwi/Programme/tools/test/lib/main.o: In function `MAIN_': /home/chwi/Programme/tools/test/lib/main.o(.text+0x789): undefined reference to Member Login Remember Me Forgot your password?

What are MLSAG's, and what is their significance for Monero and/or RingCT? See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question. 1 You So that doesn't do it Quote:> Hello, > It may be nothing more than putting the module ahead of the program > in your source file. more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science

Log in with Facebook Log in with Twitter Your name or email address: Do you already have an account? How to tell why macOS thinks that a certificate is revoked? However, when I save them into different .f90 files and try to run the main file, I get error. But in order to have reliable result and precision I still feel like using quad-precision.

Browse other questions tagged fortran or ask your own question. Quote:>Hello Everybody! >I want to use a Fortran90 program structure which is somewhat like >shown below, but when compiling I always get this compiler message: >/home/chwi/Programme/tools/test/lib/main.o: In function `MAIN_': >/home/chwi/Programme/tools/test/lib/main.o(.text+0x789): undefined Finally we are telling the compiler to consider a file that contains the compiled output of another build (modtest.o) and to link this to the compiled output of test1.f90, and use AlephZero, Aug 18, 2014 Aug 18, 2014 #15 jtbell Staff: Mentor I've never used modules, but can you use 'implicit none' at the beginning of a module?

jtbell, Aug 18, 2014 Aug 18, 2014 #12 sketos MY FILE ( StatiTests.f95) WHICH CONTAINS THE MODULE: module StatisticTests implicit none contains SUBROUTINE kstwo(data1,n1,data2,n2,d,prob) INTEGER n1,n2 REAL d,prob,data1(n1),data2(n2) !CU USES probks,sort fortran fortran90 gfortran share|improve this question asked Apr 15 '15 at 0:45 user3705273 589 3 show the command used to compile –agentp Apr 15 '15 at 0:56 Please So that doesn't do it You probably need to check the compiler documentation (as a last resort :-} ) You'll at least need to have the module compiled in the same Sign up now!

Without the fortran code to look at, its pretty much impossible to answer this. But it is true the correct answer frequently depends on your Fortan compiler (and options) and sometimes your OS and/or C compiler, so specify them. - David.Thompson1 at worldnet.att.net Dave Your solution works. I've always used it at the beginning of each subroutine or function.

Yes, my password is: Forgot your password? Log in or Sign up here!) Show Ignored Content Know someone interested in this topic? Newer Than: Search this thread only Search this forum only Display results as threads More... So that doesn't do it Then you need a reference to module1.o (or module1.obj, depending on your compiler) in the step in which you compile and load main.

As a note, if formatting is not terribly important and you're only interested in seeing some quick results, you can use the free format output (WRITE(*,*) ...). The C language doesn't define the mechanism for calling Fortran subroutines; it's likely to depend on the OS and on the C and Fortran compilers. Why is absolute zero unattainable? saved as sub_program.f90 file SUBROUTINE sub_program (v1,v2,ctr) IMPLICIT NONE INTEGER, INTENT(IN) :: ctr INTEGER, INTENT (OUT) :: v1,v2 SELECT CASE (ctr) CASE (1) v1=1 v2=0 CASE (2) v1=0 v2=1 END SELECT

What is the most expensive item I could buy with £50? New tech, old clothes Animal Shelter in Java Did Sputnik 1 have attitude control? IMO either this is a very obscure feature of Fortran 95, or else it's a compiler bug. Only something called assigned format has been removed. –Raul Laasner Apr 15 '15 at 9:29 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign

You probably might need to have compiled the module with a "-c" or similar option. This fails: Code (Text): module mymod contains subroutine sub(y) real x, y, func x = 10 y = func(x) end function func(x) real func, x func = 42 + x end Edit: It seems that gfortran does not support the -l option; maybe it is not required? Personally I am not familiar with Fortran, much less with Plplot, but I believe you require something along the lines of: Code: gfortran -I/usr/lib/fortran/modules/plplot testplot2d.f90 -o testplot2d -L/usr/lib/fortran/modules/plplot -lplplot Of course,

The original post was underscored. f95 new.f95 -o new -->./new This doesn't work because, although 'new' does contain a main program, it does not contain the subroutine 'sub1'. Can I buy my plane ticket to exit the US to Mexico? It is also possible to use the make utility, then you need to put the information about files in the makefile - but IMHO for small, two file projects it doesn't

Jun 20 '13 at 5:44 add a comment| 1 Answer 1 active oldest votes up vote 6 down vote accepted What you're doing is not telling the linker where reference module If the documentation for your Fortran compiler doesn't have the information you need, you might try comp.unix.programmer. -- Keith Thompson (The_Other_Keith) San Diego Supercomputer Center <*> We must do more hot questions about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other Stack sketos, Aug 16, 2014 Aug 16, 2014 #6 Borek Staff: Mentor Yes.

But at least we now know what to do about it! Did Sputnik 1 have attitude control? Because of Deligne’s theorem. What is the most expensive item I could buy with £50?

undefined reference to nonexistent variable 11.