- https://github.com/BrianGladman/mpir
- https://github.com/BrianGladman/mpfr
unzip as mpir and mpfr respectively(removing-suffix -master, MPFR compilation require the correct path).
Step2: Build MPIR
- Open “mpirmsvcvs15dll_mpir_gc” project with Visual Studio 2015
- Build settings: Release, x86
- Build…
- Output files locate in: mpirdllWin32Release, which is required for building MPFR
Step3: Build MPFR
- Open “mpfrbuild.vc15dll_mpfr” project with notepad++, this project is for 2017, so
- Replace ToolsVersion=”15.0” to ToolsVersion=”14.0” and all “
v141 ” to “v140 ” - Open “mpfrbuild.vc15dll_mpfr” project with Visual Studio 2015
- Build settings: Release, x86
- Build…
- Output files locate in: mpfrbuild.vc15dllWin32Release
Step4: Copy output files to desired directory.(say: C:multiprecision)
- C:multiprecisioninclude : header files
- C:multiprecisionbin : dll, should be added to system PATH
- C:multiprecisionlib : lib files
Step5: MPIR example
factorial.cpp:
#include <iostream>
#include <mpirxx.h>
int main (int argc, char *argv[])
{
mpz_class n;
n = 1;
for(int i = 2; i<= 100; i++) {
n *= i;
std::cout <<i << "!:" << n << std::endl;
}
return 0;
}
namke Makefile:
factorial.exe : factorial.obj C:multiprecisionlibmpir.lib
cl /[email protected] $**
factorial.obj : factorial.cpp
cl /EHsc -I"C:multiprecisioninclude" -c factorial.cpp
clean:
del -f *.obj factorial.exe
Step6: MPFR example
series.cpp
#include <stdio.h>
#include <gmp.h>
#include <mpfr.h>
int main (void)
{
unsigned int i;
mpfr_t s, t, u;
mpfr_init2 (t, 200);
mpfr_set_d (t, 1.0, MPFR_RNDD);
mpfr_init2 (s, 200);
mpfr_set_d (s, 1.0, MPFR_RNDD);
mpfr_init2 (u, 200);
for (i = 1; i <= 100; i++) {
mpfr_mul_ui (t, t, i, MPFR_RNDU);
mpfr_set_d (u, 1.0, MPFR_RNDD);
mpfr_div (u, u, t, MPFR_RNDD);
mpfr_add (s, s, u, MPFR_RNDD);
}
printf ("Sum is ");
mpfr_out_str (stdout, 10, 0, s, MPFR_RNDD);
putchar ('n');
mpfr_clear (s);
mpfr_clear (t);
mpfr_clear (u);
mpfr_free_cache ();
return 0;
}
nmake Makefile:
series.exe : series.obj C:multiprecisionlibmpfr.lib
cl /[email protected] $**
series.obj : series.cpp
cl /EHsc -I"C:multiprecisioninclude" -c series.cpp
clean:
del -f *.obj series.exe
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