may you remove this warnings: pyfm_fast.c(3174): warning C4018: '<': signed/unsigned mismatch

[Sandy4321]

there are many warnings doing installation
pyfm_fast.c(3174): warning C4018: '<': signed/unsigned mismatch

Microsoft Windows [Version 10.0.16299.371]
(c) 2017 Microsoft Corporation. All rights reserved.

E:\Factorisation machens\how to install\pyfm_installation\pyFM-master\pyFM-master>python setup.py build_ext --inplace
running build_ext
cythoning pyfm_fast.pyx to pyfm_fast.c
building 'pyfm_fast' extension
creating build
creating build\temp.win-amd64-3.6
creating build\temp.win-amd64-3.6\Release
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Users\sndr\Anaconda3\lib\site-packages\numpy\core\include -IC:\Users\sndr\Anaconda3\include -IC:\Users\sndr\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\8.1\include\shared" "-IC:\Program Files (x86)\Windows Kits\8.1\include\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\winrt" /Tcpyfm_fast.c /Fobuild\temp.win-amd64-3.6\Release\pyfm_fast.obj
pyfm_fast.c
c:\users\sndr\anaconda3\lib\site-packages\numpy\core\include\numpy\npy_1_7_deprecated_api.h(12) : Warning Msg: Using deprecated NumPy API, disable it by #defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
pyfm_fast.c(3174): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(3214): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(3245): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(3843): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(3910): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(3941): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(4885): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(4953): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(4964): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(5505): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(5572): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(5610): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(5996): warning C4018: '<': signed/unsigned mismatch
pyfm_fast.c(14070): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data
pyfm_fast.c(14076): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:C:\Users\sndr\Anaconda3\libs /LIBPATH:C:\Users\sndr\Anaconda3\PCbuild\amd64 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\LIB\amd64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.10240.0\ucrt\x64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\8.1\lib\winv6.3\um\x64" /EXPORT:PyInit_pyfm_fast build\temp.win-amd64-3.6\Release\pyfm_fast.obj "/OUT:E:\Factorisation machens\how to install\pyfm_installation\pyFM-master\pyFM-master\pyfm_fast.cp36-win_amd64.pyd" /IMPLIB:build\temp.win-amd64-3.6\Release\pyfm_fast.cp36-win_amd64.lib
pyfm_fast.obj : warning LNK4197: export 'PyInit_pyfm_fast' specified multiple times; using first specification
Creating library build\temp.win-amd64-3.6\Release\pyfm_fast.cp36-win_amd64.lib and object build\temp.win-amd64-3.6\Release\pyfm_fast.cp36-win_amd64.exp
Generating code
Finished generating code

E:\Factorisation machens\how to install\pyfm_installation\pyFM-master\pyFM-master>