Just finished compiling some numerical code (developed using the Borland C++ compiler) using G++ 4.3.4 (that came with Cygwin 1.7). The answers are different from what I get using the Borland compiler (circa 2002). I have known correct answers from some NASA code and compare against those. I've transitioned of late to Code::Blocks using the latest MinGW. MinGW comes with G++ 4.5.2. I compiled using this compiler and it once again works (I get the same answers as the NASA code). Are there known problems with G++ 4.3.4? BTW, the original code was infinite looping until I replaced the old style: for (i=0; i<WHATEVER; i++) .. with i declared within the routine (i.e., function) with: for (int i=0; i<WHATEVER; i++) ... ---Jan
