Borland C++ gsl_rng

Borland C++ gsl_rng

[Michał Strug]

Hello

    I'm trying to use GSL in Borland C++ Compiler 5.5 (w2k). I've got 
every libs. I tried to compile simple program which use gsl/gsl_rng.h. 
And during compilation I've got message (other function such as 
gsl_rng_env_setup were consolidated without problems):
Error: Unresolved external '_gsl_rng_default' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSL\PROG.OBJ

compiling commands:
bcc32 -ps -c prog.cpp
ilink32 -ap prog.obj c0x32,,,cw32 import32 libgsl libgslcblas

libgsl.lib libgslcblas.lib I've maked from libgsl.dll and 
libgslcblas.dll using implib.exe

program code:
#include <stdio.h>
#include <iostream.h>
#include <gsl/gsl_rng.h>
int main (void) {
  const gsl_rng_type * T;
  gsl_rng * r;
  int i, n = 10;
  gsl_rng_env_setup();
  T = gsl_rng_default;
  r = gsl_rng_alloc (T);
  for (i = 0; i < n; i++)    {
      double u = gsl_rng_uniform (r);
      printf ("%.5f\n", u);    }
  gsl_rng_free (r);
  return 0; }

    Michal

Re: Borland C++ gsl_rng

[Joakim Hove]

Michał Strug <mbr4@o2.pl> writes:




>   const gsl_rng_type * T;
>   gsl_rng * r;
>   gsl_rng_env_setup();
>   T = gsl_rng_default;
>   r = gsl_rng_alloc (T);


Replace with (for instance):

    gsl_rng * r = gsl_rng_alloc (gsl_rng_taus);

I would try allocating one of the rng_types explicitly, like the
gsl_rng_taus generator above. The default method is based on
environment variables - I have no idea how that works from Windows.


HTH - Joakim


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Re: Borland C++ gsl_rng

[Michał Strug]

Hi

    It gives the same message:

Error: Unresolved external '_gsl_rng_taus' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSLNEW\PROG.OBJ

    I think that, maybe this error is caused by importing types from dll 
in borland compiler. All gsl function are exported as stdcall so when 
I'm compiling I'm using -ps switch but how tell to compiler that types 
gsl_rng_taus and gsl_rng_default are too in stdcall convention? Maybe I 
should declare them in borland?

Compiling without -ps switch:
Error: Unresolved external '_gsl_rng_taus' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSLNEW\PROG.OBJ
Error: Unresolved external '_gsl_rng_alloc' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSLNEW\PROG.OBJ
Error: Unresolved external '_gsl_rng_uniform' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSLNEW\PROG.OBJ
Error: Unresolved external '_gsl_rng_free' referenced from 
C:\PROGRAMY\BCC55\PROGS\GSLNEW\PROG.OBJ

    Michal