Hi Mr Noone, > Is there a web page somewhere that describes > differences between g++ and ISO/IEC 14882:1998 C++? > Maybe even lists the g++ compiler limits? Is this what you are looking for...? http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/C_002b_002b-Extensions.html I believe the goal of GCC C++ compliance is ISO/IEC 14882-2003 (1998 revised with 2003 TR) compliance. If you find any non-compliance with that standard, please post to this forum, or file a bug report. HTH, --Eljay