Compiling C++ files using MEX

1
votes

I want to use MEX for compiling C\C++ files on MATLAB. I tried mex -setup first then mex xyz.cpp. But I am still getting error

E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'xyz.cpp' failed.

When typing this command

mex -v mexDiscreteFlow.cpp BPFlow.cpp Stochastic.cpp

I get the following output

This is mex, Copyright 1984-2007 The MathWorks, Inc.

-> Default options filename found in C:\Users\abc\AppData\Roaming\MathWorks\MATLAB\R2008b ----------------------------------------------------------------
-> Options file = C:\Users\abc\AppData\Roaming\MathWorks\MATLAB\R2008b\mexopts.bat
MATLAB = E:\MATLAB~1
-> COMPILER = lcc
-> Compiler flags:
COMPFLAGS = -c -Zp8 -I"E:\MATLAB~1\sys\lcc\include" -DMATLAB_MEX_FILE -noregistrylookup
OPTIMFLAGS = -DNDEBUG
DEBUGFLAGS = -g4
arguments =
Name switch = -Fo
-> Pre-linking commands =
-> LINKER = lcclnk
-> Link directives:
LINKFLAGS = -tmpdir "." -dll "E:\MATLAB~1\extern\lib\win32\lcc\mexFunction.def" -L"E:\MATLAB~1\sys\lcc\lib" -libpath "E:\MATLAB~1\extern\lib\win32\lcc" "C:\USERS\abc\APPDATA\LOCAL\TEMP\MEX_JT~1\templib2.obj"
LINKDEBUGFLAGS =
LINKFLAGSPOST = libmx.lib libmex.lib libmat.lib
Name directive = -o "mexDiscreteFlow.mexw32"
File link directive =
Lib. link directive =
Rsp file indicator = @
-> Resource Compiler = lrc -I"E:\MATLAB~1\sys\lcc\include" -noregistrylookup -fo"mexversion.res"
-> Resource Linker =
----------------------------------------------------------------

--> lcc -c -Zp8 -I"E:\MATLAB~1\sys\lcc\include" -DMATLAB_MEX_FILE -noregistrylookup -FoC:\USERS\abc\APPDATA\LOCAL\TEMP\MEX_JT~1\mexDiscreteFlow.obj -IE:\MATLAB~1\extern\include -IE:\MATLAB~1\simulink\include -DNDEBUG -DMX_COMPAT_32 C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp

lcc preprocessor error: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\ImageProcessing.h:7 C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\Image.h:7 C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp:3 Could not find include file
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 7 syntax error; found <' expecting;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 7 skipping <'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 7 syntax error; foundT' expecting ;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 7 syntax error; found>' expecting ;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 7 skipping>'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 8 syntax error; found *' expecting)'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 8 skipping *'pBuffer'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 10 undeclared identifier pBuffer'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 undeclared identifierdelete'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 illegal expression
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 syntax error; found pBuffer' expecting]'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 type error: pointer expected
Warning C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 Statement has no effect
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 syntax error; found pBuffer' expecting;'
Warning C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 Statement has no effect
Warning C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 11 possible usage of delete before definition
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 15 syntax error; found <' expecting;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 15 skipping <'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 15 syntax error; foundT' expecting ;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 15 syntax error; found>' expecting ;'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 15 skipping>'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 16 syntax error; found *' expecting)'
Error C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\mexDiscreteFlow.cpp: C:\USERS\abc\DOWNLO~1\RELEASE\RELEASE\MEX\project.h: 16 too many errors

E:\MATLAB~1\BIN\MEX.PL: Error: Compile of 'mexDiscreteFlow.cpp' failed.

??? Error using ==> mex at 213
Unable to complete successfully.

Can anyone offer some suggestions ?

Thanks

1
matlabmex
Try compiling without running your C++ compiler from within Matlab. That should help you isolate the problem. – High Performance Mark
I guess you run mex -setup instead of mex-setup, right? – Drodbar
@drodbar: yes.. i will edit it. – user671805
Try 'mex -v xyz.cpp' and provide the full output. There must be another error (other than "compile failed") that would give an indication of the problem. – robince

1 Answers

4
votes

lcc is the C compiler shipped with Matlab, but you are trying to compile a C++ file. You need to run mex -setup again and choose a C++ compiler (but first get a C++ compiler, if you don't already have one)