Mex generates error for // while compiling C code in Linux

Question

I want to compile a C code in ubuntu using mex which is configured with gcc. I can smoothly compile the code in OSX. However, when I want to compile it in Linux, th

Answer 1

From the gcc docs;

In GNU C, you may use C++ style comments, which start with ‘//’ and continue until the end of the line. Many other C implementations allow such comments, and they are included in the 1999 C standard. However, C++ style comments are not recognized if you specify an -std option specifying a version of ISO C before C99, or -ansi (equivalent to -std=c90).

Under Linux, by default mex adds -ansi, which disables C++ comments. Either update your mexopts file, replacing -ansi with -std=c99 or run mex with;

mex -g -largeArrayDims -ldl CFLAGS="\$CFLAGS -std=c99" TDSVDHNGateway.c