On 04/02/2014 20:31, MPIR Team wrote:
> ---------- Forwarded message ----------
> From: *Terence Henriod* <thenr...@gmail.com <mailto:thenr...@gmail.com>>
> Date: 7 January 2014 01:14
> Subject: Having Difficulty Installing/Building MPIR
> To: thempirt...@gmail.com <mailto:thempirt...@gmail.com>
>
>
> Hello MPIR Team,
>
> I'm not sure if you really do support using this e-mail address, but the
> Contact Us portion of your website led me to this address.
>
> I am trying to build MPIR on my personal computer, mostly for
> recreational use (Project Euler and the like).
>
> I used Rick Reagan's instructions
> at
> http://www.exploringbinary.com/how-to-install-and-run-gmp-on-windows-using-mpir/
> since
> they seem to be referenced by many people across the web, but I'm not
> sure how applicable they are to my machine and setup.
>
> I am using a Lenovo T530 machine with an Intel Core i5-3360M 2.80GHz
> processor. My OS is Windows 7 Home Premium 64-bit. I am using the Visual
> Studio Professional 64-bit programming environment. I am trying to
> install mpir-2.6.0, and I used vsyasm-1.2.0-win64 as the assembler.
>
> I followed Rick's instructions for installing the C++ wrapper (mpirxx)
> in addition to the C part. I can have a project build when I #include
> <mpirxx.h>, but when I try to use the integer type, I get several linker
> errors that seem to indicate that there are several MPIR methods that
> the compiler is missing definitions for. To follow is the code and the
> error list.
>
> I am hoping that I have just missed a file that needed to be included in
> the VS directories, and really hope that none of this is occurring
> because I tried to build things meant for VS2010 in VS2012. I have also
> become very sorry I am using Windows and not Linux ;) .
>
> This is my first time trying to install an external library, so it is
> highly possible that I made some other mistakes somewhere.
>
> Thank you for your time, I appreciate any help/pointers.
>
> Sincerely,
> Terence
>
> The errors:
>
> error LNK2001: unresolved external symbol __gmpz_set_si
> error LNK2001: unresolved external symbol __gmpz_clear
> error LNK2001: unresolved external symbol __gmpz_init_set_si
> error LNK2001: unresolved external symbol __gmpz_get_str
> mpirxx.lib(ompz.obj)
> error LNK2001: unresolved external symbol __gmp_asprintf_memory
> mpirxx.lib(osfuns.obj)
> error LNK2001: unresolved external symbol __gmp_asprintf_reps
> mpirxx.lib(osfuns.obj)
> error LNK2001: unresolved external symbol __gmp_asprintf_final
> mpirxx.lib(osdoprnti.obj)
> error LNK2001: unresolved external symbol __gmp_doprint_integer
> mpirxx.lib(osdoprnti.obj)
> error LNK2001: unresolved external symbol __gmp_allocate_func
> mpirxx.lib(osdoprnti.obj)
> error LNK2001: unresolved external symbol __gmp_free_func
> mpirxx.lib(osdoprnti.obj)
>
> According to VS:
> The first 3 are related to project_euler_problem_16.o (my file).
> The rest are related to various mpirxx.lib files listed next to the errors.
>
> The code:
>
> // This is for an unfinished program to find the sum of the digits
> // of 2^1000
> #include <cassert>
> #include <cmath>
> #include <cstdio>
> #include <iostream>
> #include <iomanip>
> #include <fstream>
> #include <mpirxx.h>
> using namespace std;
>
> int main(int argc, char** argv) {
> // variables
> unsigned int power = 1000;
> unsigned int digit_sum = 0;
> mpz_class large_number = 0;
> char file_name [] = "project_euler_problem_16.txt";
> ofstream fout;
> FILE* file;
>
> // get the power of 2 to use
> printf("The number whose digits to be summed is: 2^");
> scanf("%u", &power);
>
> // compute the power
> large_number = 4; //pow(2, power);
>
> cout << large_number << endl;
>
> // write it to the file
> file = fopen(file_name, "w");
> fprintf(file, "%lf", large_number);
> fclose(file);
>
> // compute the sum of the digits
> //digit_sum = sumDigits(file_name);
>
> // report the result to the user
> printf("\nThe sum of %lf's \ndigits is: %u\n", large_number, digit_sum);
> scanf("%s", file_name);
>
> // return 0 on successful completion
> return 0;
> }
My apologies for this delay in answering your query but I have only just
became aware of it. If it is still active, I am happy to see if I can
offer any advice on how to fix it.
I ran your program myself and it links fine so I think something is
missing from your Visual Studio configuration for the project.
Firstly are you sure that you are linking with the correct Mirosoft
libraries. By default Visual C++ links to the DLL run-time libraries
but MPIR links to the static run-time libraries. This is set on the
C/C++|Code Generation|Runtime library item.
Secondly have you added links to both mpir.lib AND mpirxx.lib under the
Linker|Input|Additional Dependencies item? From your error summary it
seems that either or both these libraries may be missing.
I can send you my Visual Studio build files for your project if you
can't get it to work. I set up projects in parallel directories like this:
mpir - where mpir is placed
mpir application - a project using mpir (i.e your application)
so you would have to use the same layout to use them.
Let me know if you still need help.
best regards,
Brian
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