matlab - GCC 3.4 vs 4.4 for C++ based MEX files? -


what trade-offs/concerns using gcc 3.4 vs 4.4 compiling modern matlab mex files?

i need compile off-the-shelf c++ code (kdtree) mex file use matlab (r2012a) under fedora v16. have run symbol problems using latest gcc complier (4.6.x) cluster default. , system administrator resistant making gcc 4.4.x, officially supported compiler matlab available. (not sure why) so, instead proposing using legacy (circa 2006) gcc 3.4.6 compiler. question if trade-offs or issues there using older gcc compiler? performance? 64-bit support? thread safety (or multiple parallel calls)? etc?

you're missing out on preliminary implementation of c++11 features (including standardized threads, variadic templates, etc http://wiki.apache.org/stdcxx/c%2b%2b0xcompilersupport). long both compilers produce binaries abi compatible matlab/octave, there arent version-specific safety concerns. no c compiler can solve shared-state problems you. performance different, not significant. in either compiler version i'm sure theres more optimial implementation of code anyway. gcc 3.4 has 64bit support.


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