How to manually edit MatLab Coder .mex-file code to support 64bit indexing

Hey,

I have a problem that mex files generated by MatLab Coder only supports 32bit indexing, which is the reason my program gets an error when the input of the bottleneck mex function exceeds an input boolean matrix which has more than 2^31 elements.

I know that mex-files support 64bit indexing when they are hand written, but since I am not comfortable with c or c++, I wonder if there is a way, and if so how, to manually correct this at the end of the coder when it shows me the code it generated?

I read that i shoukld have to replace the 'int32_T' by 'size_t' but thats not all, I would also need to replace the the constructors 'coder::array<T, 1U>' with C MEX API... and thats the point where my knowledge ends and I would need some help about what to do exactly and how to do it.

May be someone coukld help me with that.

Best regards and many thanks in advance

Answer 1

[Nitin Kapgate]

Currently MATLAB Coder supports only upto 2^32 elements in an array.

So you will need to manually change the codein C/C++ files.

You can refer to the guide to enable support for 64-bit indexing in MEX files using compatibleArrayDims flag in mex command.

You can use these additional instructions to upgrade MEX files to use 64-Bit API.

[Marc Laub]

I first tried to recompile the coder code with matlab again, just to be sure that it will work. Untill this would not work I should not be concerned about changing the code because I cant compile it.

So I tried it but i got tonnes of error messages which I did understand:

>> mex -v *.cpp
Verbose mode is on.
... Looking for compiler 'MinGW64 Compiler (C++)' ...
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset').
... Looking for file 'C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++.exe' ...Yes.
... Looking for folder 'C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset' ...Yes.
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -dumpmachine' ...Yes ('x86_64-w64-mingw32').
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -dumpversion' ...Yes ('6.3.0').
Found installed compiler 'MinGW64 Compiler (C++)'.
Set PATH = C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin;C:\Program Files\MATLAB\R2020a\extern\include\win64;C:\Program Files\MATLAB\R2020a\extern\include;C:\Program Files\MATLAB\R2020a\simulink\include;C:\Program Files\MATLAB\R2020a\lib\win64;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\MATLAB\R2020a\runtime\win64;C:\Program Files\MATLAB\R2020a\bin;C:\Users\mlaub\AppData\Local\Microsoft\WindowsApps;
Set INCLUDE = C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\include;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++\x86_64-w64-mingw32;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++\backward;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\x86_64-w64-mingw32\include;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\include;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++\x86_64-w64-mingw32;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib\gcc\x86_64-w64-mingw32\6.3.0\include\c++\backward;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\x86_64-w64-mingw32\include;
Set LIB = C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib;;C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\lib;;
Set MW_TARGET_ARCH = win64;win64;
Set LIBPATH = C:\Program Files\MATLAB\R2020a\extern\lib\win64;C:\Program Files\MATLAB\R2020a\extern\lib\win64;
Options file details
-------------------------------------------------------------------
	Compiler location: C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset
	Options file: C:\Users\mlaub\AppData\Roaming\MathWorks\MATLAB\R2020a\mex_C++_win64.xml
	CMDLINE2 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -m64 -Wl,--no-undefined -shared -static -s -Wl,"C:\Program Files\MATLAB\R2020a/extern/lib/win64/mingw64/exportsmexfileversion.def" C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj   -L"C:\Program Files\MATLAB\R2020a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -llibmwlapack -llibmwblas -llibMatlabDataArray -llibMatlabEngine -o grain_struct_grower_para.mexw64
	CXX : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
	COMPILER : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
	DEFINES : -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE 
	MATLABMEX : -DMATLAB_MEX_FILE 
	CFLAGS : -fexceptions -fno-omit-frame-pointer
	CXXFLAGS : -fexceptions -fno-omit-frame-pointer -std=c++11
	INCLUDE : -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include"
	CXXOPTIMFLAGS : -O2 -fwrapv -DNDEBUG
	CXXDEBUGFLAGS : -g
	LDXX : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
	LINKER : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
	LDFLAGS : -m64 -Wl,--no-undefined
	LDTYPE : -shared -static
	LINKEXPORT : -Wl,"C:\Program Files\MATLAB\R2020a/extern/lib/win64/mingw64/mexFunction.def"
	LINKEXPORTVER : -Wl,"C:\Program Files\MATLAB\R2020a/extern/lib/win64/mingw64/exportsmexfileversion.def"
	LIBLOC : C:\Program Files\MATLAB\R2020a\extern\lib\win64\mingw64
	LINKLIBS : -L"C:\Program Files\MATLAB\R2020a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -llibmwlapack -llibmwblas -llibMatlabDataArray -llibMatlabEngine
	LDOPTIMFLAGS : -s
	LDDEBUGFLAGS : -g
	OBJEXT : .obj
	LDEXT : .mexw64
	SETENV : set COMPILER=C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\gcc
                set CXXCOMPILER=C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
                set COMPFLAGS=-c -fexceptions -fno-omit-frame-pointer -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -DMATLAB_MEX_FILE 
                set CXXCOMPFLAGS=-c -fexceptions -fno-omit-frame-pointer -std=c++11 -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -DMATLAB_MEX_FILE 
                set OPTIMFLAGS=-O2 -fwrapv -DNDEBUG
                set DEBUGFLAGS=-g
                set LINKER=C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\gcc
                set CXXLINKER=C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++
                set LINKFLAGS=-m64 -Wl,--no-undefined -shared -static -L"C:\Program Files\MATLAB\R2020a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -llibmwlapack -llibmwblas -llibMatlabDataArray -llibMatlabEngine -Wl,"C:\Program Files\MATLAB\R2020a/extern/lib/win64/mingw64/mexFunction.def"
                set LINKDEBUGFLAGS=-g
                set NAME_OUTPUT= -o "%OUTDIR%%MEX_NAME%%MEX_EXT%"
	MINGWROOT : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset
	MINGWTARGET : x86_64-w64-mingw32
	VERSION : 6.3.0
	MATLABROOT : C:\Program Files\MATLAB\R2020a
	ARCH : win64
	SRC : "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para.cpp";"C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para_mexutil.cpp";"C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\rt_nonfinite.cpp";"C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_info.cpp";"C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_mex.cpp";"C:\Program Files\MATLAB\R2020a\extern\version\cpp_mexapi_version.cpp"
	OBJ : C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj;C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj;C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj;C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj;C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj;C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj
	OBJS : C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj 
	SRCROOT : C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para
	DEF : C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.def
	EXP : "grain_struct_grower_para.exp"
	LIB : "grain_struct_grower_para.lib"
	EXE : grain_struct_grower_para.mexw64
	ILK : "grain_struct_grower_para.ilk"
	MANIFEST : "grain_struct_grower_para.mexw64.manifest"
	TEMPNAME : grain_struct_grower_para
	EXEDIR : 
	EXENAME : grain_struct_grower_para
	OPTIM : -O2 -fwrapv -DNDEBUG
	LINKOPTIM : -s
	CMDLINE1_0 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj
	CMDLINE1_1 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para_mexutil.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj
	CMDLINE1_2 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\rt_nonfinite.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj
	CMDLINE1_3 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_info.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj
	CMDLINE1_4 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_mex.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj
	CMDLINE1_5 : C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Program Files\MATLAB\R2020a\extern\version\cpp_mexapi_version.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj
-------------------------------------------------------------------
Building with 'MinGW64 Compiler (C++)'.
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\grain_struct_grower_para_mexutil.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\rt_nonfinite.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_info.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Users\mlaub\Desktop\Promo_matlab\linked_grains_model2_readyCPP\codegen\mex\grain_struct_grower_para\_coder_grain_struct_grower_para_mex.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -c -DMATLAB_DEFAULT_RELEASE=R2017b  -DUSE_MEX_CMD   -m64 -DMATLAB_MEX_FILE  -I"C:\Program Files\MATLAB\R2020a/extern/include" -I"C:\Program Files\MATLAB\R2020a/simulink/include" -fexceptions -fno-omit-frame-pointer -std=c++11 -O2 -fwrapv -DNDEBUG "C:\Program Files\MATLAB\R2020a\extern\version\cpp_mexapi_version.cpp" -o C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj
C:\ProgramData\MATLAB\SupportPackages\R2020a\3P.instrset\mingw_w64.instrset\bin\g++ -m64 -Wl,--no-undefined -shared -static -s -Wl,"C:\Program Files\MATLAB\R2020a/extern/lib/win64/mingw64/exportsmexfileversion.def" C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\rt_nonfinite.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\cpp_mexapi_version.obj   -L"C:\Program Files\MATLAB\R2020a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -llibmwlapack -llibmwblas -llibMatlabDataArray -llibMatlabEngine -o grain_struct_grower_para.mexw64
Error using mex
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x29): undefined reference
to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x35): undefined reference
to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x6b): undefined reference
to `emlrtCheckBuiltInR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x74): undefined reference
to `emlrtMxGetData'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x80): undefined reference
to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x89): undefined reference
to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x92): undefined reference
to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xd0): undefined reference
to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xdc): undefined reference
to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x112): undefined
reference to `emlrtCheckBuiltInR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x11b): undefined
reference to `emlrtMxGetData'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x128): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x131): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x13a): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x17b): undefined
reference to `emlrtCreateNumericArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x189): undefined
reference to `emlrtMxSetData'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x19e): undefined
reference to `emlrtSetDimensions'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1aa): undefined
reference to `emlrtAssign'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x288): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x297): undefined
reference to `emlrtEnterParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2a7): undefined
reference to `omp_get_thread_num'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2b5): undefined
reference to `emlrtAllocTLS'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x48f): undefined
reference to `emlrtHeapReferenceStackEnterFcnR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x514): undefined
reference to `emlrtSizeMulR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x52a): undefined
reference to `emlrtSizeMulR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x567): undefined
reference to `emlrtMallocMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x5a0): undefined
reference to `emlrtMallocMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x5b9): undefined
reference to `emlrtFreeMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x66b): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x679): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x724): undefined
reference to `muDoubleScalarPower'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x788): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x819): undefined
reference to `emlrtSubAssignSizeCheck1dR2017a'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x88e): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x92b): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xa86): undefined
reference to `muDoubleScalarAbs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xb2a): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xb76): undefined
reference to `muDoubleScalarAbs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xbe2): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xc2f): undefined
reference to `emlrtSizeEqCheck1DR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xcbc): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xd03): undefined
reference to `muDoubleScalarAbs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xd75): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xdc1): undefined
reference to `emlrtSizeEqCheck1DR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xefe): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0xf43): undefined
reference to `muDoubleScalarAbs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1120): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1163): undefined
reference to `muDoubleScalarAbs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1242): undefined
reference to `emlrtSizeEqCheck1DR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x129f): undefined
reference to `emlrtSubAssignSizeCheck1dR2017a'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x12f1): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x13ff): undefined
reference to `emlrtSizeMulR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1415): undefined
reference to `emlrtSizeMulR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x146c): undefined
reference to `emlrtMallocMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x156b): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1579): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x168b): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x176a): undefined
reference to `emlrtDynamicBoundsCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x17cc): undefined
reference to `emlrtHeapReferenceStackLeaveFcnR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x17e6): undefined
reference to `emlrtFreeMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1896): undefined
reference to `emlrtErrorWithMessageIdR2018a'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x18a4): undefined
reference to `emlrtBreakCheckR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x18b2): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x18c8): undefined
reference to `emlrtExitParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x18d8): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1947): undefined
reference to `muDoubleScalarIsNaN'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1a5c): undefined
reference to `emlrtErrorWithMessageIdR2018a'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1a71): undefined
reference to `emlrtMallocMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1afd): undefined
reference to `emlrtFreeMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1b32): undefined
reference to `muDoubleScalarPower'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1b6a): undefined
reference to `emlrtFreeMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1c3b): undefined
reference to `emlrtHeapAllocationErrorR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1c65): undefined
reference to `emlrtHeapAllocationErrorR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1c7a): undefined
reference to `emlrtHeapAllocationErrorR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1c8f): undefined
reference to `emlrtHeapAllocationErrorR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1dfe): undefined
reference to `emlrtFreeMex'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1f83): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1fa2): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1fc1): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1fe0): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x1fff): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x201e): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x203e): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x205e): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x207e): more undefined
references to `emlrtAliasP' follow
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x209e): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x20ca): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x20d6): undefined
reference to `emlrtAlias'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x210f): undefined
reference to `emlrtCheckBuiltInR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2118): undefined
reference to `emlrtMxGetData'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2125): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x212e): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2137): undefined
reference to `emlrtDestroyArray'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2140): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2160): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2180): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x21a0): undefined
reference to `emlrtAliasP'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x233e): undefined
reference to `emlrtEnterRtStackR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2346): undefined
reference to `emlrtLeaveRtStackR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2352): undefined
reference to `emlrtDestroyRootTLS'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x235e): undefined
reference to `emlrtExitTimeCleanup'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23a6): undefined
reference to `emlrtGetBreakCheckFlagAddressR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23c8): undefined
reference to `emlrtClearAllocCountR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23d0): undefined
reference to `emlrtEnterRtStackR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23dc): undefined
reference to `emlrtFirstTimeR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23e1): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23ec): undefined
reference to `emlrtEnterParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23f1): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x23fc): undefined
reference to `emlrtEnterParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2417): undefined
reference to `omp_get_max_threads'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2420): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x242b): undefined
reference to `emlrtExitParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x2430): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x243b): undefined
reference to `emlrtExitParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x247f): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x248a): undefined
reference to `emlrtEnterParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x248f): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x249a): undefined
reference to `emlrtEnterParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24b0): undefined
reference to `omp_get_max_threads'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24b9): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24c4): undefined
reference to `emlrtExitParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24c9): undefined
reference to `omp_in_parallel'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24d4): undefined
reference to `emlrtExitParallelRegion'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24dc): undefined
reference to `emlrtLeaveRtStackR2012b'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para.obj:grain_struct_grower_para.cpp:(.text+0x24e8): undefined
reference to `emlrtDestroyRootTLS'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj:grain_struct_grower_para_mexutil.cpp:(.text+0x31):
undefined reference to `omp_set_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\grain_struct_grower_para_mexutil.obj:grain_struct_grower_para_mexutil.cpp:(.text+0x4d):
undefined reference to `omp_unset_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xa6):
undefined reference to `emlrtCreateStructMatrix'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xb8):
undefined reference to `emlrtCreateLogicalMatrix'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xc8):
undefined reference to `emlrtMxCreateString'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xdc):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xe9):
undefined reference to `emlrtMxCreateDoubleScalar'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0xfd):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x10a):
undefined reference to `emlrtMxCreateDoubleScalar'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x11a):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x12b):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x137):
undefined reference to `emlrtMxCreateString'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x147):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x154):
undefined reference to `emlrtMxCreateDoubleScalar'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x164):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x17d):
undefined reference to `emlrtCreateStructMatrix'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x18c):
undefined reference to `emlrtMxCreateString'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x19c):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x1ce):
undefined reference to `emlrtNameCaptureMxArrayR2016a'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x1df):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_info.obj:_coder_grain_struct_grower_para_info.cpp:(.text+0x1f3):
undefined reference to `emlrtSetField'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x78):
undefined reference to `emlrtErrMsgIdAndTxt'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0xa5):
undefined reference to `emlrtReturnArrays'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0xec):
undefined reference to `emlrtErrMsgIdAndTxt'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x153):
undefined reference to `emlrtLoadLibrary'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x15f):
undefined reference to `omp_init_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x16b):
undefined reference to `omp_init_nest_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x1a1):
undefined reference to `omp_destroy_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x1ad):
undefined reference to `omp_destroy_nest_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x1ca):
undefined reference to `omp_destroy_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x1d6):
undefined reference to `omp_destroy_nest_lock'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x1df):
undefined reference to `emlrtReportParallelRunTimeError'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x209):
undefined reference to `omp_get_num_procs'
C:\Users\mlaub\AppData\Local\Temp\mex_2843770821395138_3468\_coder_grain_struct_grower_para_mex.obj:_coder_grain_struct_grower_para_mex.cpp:(.text+0x226):
undefined reference to `emlrtCreateRootTLS'
collect2.exe: error: ld returned 1 exit status

I dont get why emlrtAlias and many other cand be found, the folder extern/include where this header is, is named in the path at the top. I can even copy the emlrt.h into the directory where the cpp's are and it still says the same error.

exist('...\emlrt.h', 'file')=2, so the file is there...

Whats the problem?

[gregory pais]

mex compiler indicates you that functions emlrt are not found. To solve it you have to indicate to the linker where these functions are present. These functions are present in libemlrt.lib under matlabroot\extern\lib\mingw64. You have to add the library file to the mex command like this mex -v *.cpp '-llibemlrt'.

Probably you have to add libmwmathutil where muDouble functions like muDoubleScalarMin are defined.

mex -v *.cpp '-llibemlrt' '-llibmwmathutil'