mex

I'm trying to setup Mingw-w64 as the mex compiler in MATLAB 2013a. My laptop has x86_64 architecture and runs windows 7. The program I want to compile uses c++11-style threading, so I'm using mingw-w64 version 4.9.0 with posix threads. According to instruction I found here and here , I modified my mexopts.bat file. The code seems to compile successfully, but the linker reports an error. Does anyone have suggestions what I might be doing wrong? By the way, I tried using gnumex to setup the compiler, but that didn't work either. Here's the output and error message that MATLAB gives: >mex -v

my question is the title. Why is str2double so slow in matlab as compared to a mex function made in C/C++? Does matlab just not have good string handling capabilities? Can anyone give me some factual reasons as to why a mex function runs so many orders of magnitude faster? I was hoping to do a running time analysis of this difference but I don't have any concrete reasons from the code for matlab. Can you explain to me how I would open to file and actually look at the code written for the built in matlab str2double function? some postings on the topic: http://www.mathworks.com/matlabcentral

I have downloaded the following code : CVPR 2014 intersection over union optimization code cvpr2014-iou-code-1.0.zip http://research.microsoft.com/en-us/downloads/e164fe21-ef2b-4e34-98c1-4868968abb06/ What I get is an archive with two folders, one called src/ and another one called matlab/ . I am running Linux Fedora 19 and I can compile the code in src/ just fine. The problem arises when I try to compile the code in matlab/ . The README says: Matlab compilation ------------------ From within Matlab, configure the compiler using "mex -setup", then adjust the paths in matlab\compile_windows.m

I am getting started with using MEX files for MATLAB (R2012a) compiled from C code (using XCode 4.3) on my Mac (running OSX 10.7.3, Lion). I have already installed the MATLAB provided XCode patch which configures MATLAB to use the new llvm-gcc compiler under XCode 4.2+, but I am still getting the following error attempting to compile the example file using mex timestwo.c : /Applications/MATLAB_R2012a.app/extern/include/matrix.h:852:20: error: stdlib.h: No such file or directory In file included from timestwo.c:1: /Applications/MATLAB_R2012a.app/extern/include/mex.h:161:19: error: stdio.h: No

I am trying to compile a c++ ubuntu project via matlab here . When I am trying to use it after the compilation with make command, I am getting the following error: Invalid MEX-file '////fashionista_v0.2/lib/+bsr/buildW.mexglx': //local/MATLAB/R2011a/bin/glnx86/../../sys/os/glnx86/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by ////fashionista_v0.2/lib/+bsr/buildW.mexglx) I am not familiar with those processes, so I couldnt understand the several proposed solutions like that . What is exactly libstdc++ and GLIBCXX and how can I solve the problem? I am trying to fix the problem

I have compiled Mex file successfully on my laptop. But when I am running it, it says Invalid mex file 'c:\newfolder\filename.mexw32' The specified module could not be found . System specification: OS: windows 7 MATLAB 2010a Microsoft Visual Studio 2008. The same mex file is compiled and run successfully on my PC under XP SP3. This MathWorks support link suggests two possible reasons to your problem: You do not have all of the necessary libraries that the MEX-function is dependent upon. You are running a MEX-file on a different version of MATLAB than it was compiled on. Either way, to locate