On 9 February 2017 at 15:56, Lakshay Garg wrote: > Hello GCC > > I am taking a compilers course and trying to build a compiler for C++. > I have been trying to find a reliable lex and yacc script (one which > does not cause any conflicts) which I can build upon but haven't found > anything yet. Could you please point me to a source where I can find > these files. You could try looking at an ancient version of GCC, version 3.3 or older. Since version 3.4.0 GCC has used a hand-written C++ parser, not one based on lex or yacc. Obviously if you look at an ancient GCC then you'll only find something that supports an ancient dialect of C++, and will have several parsing bugs (that's one of the reasons GCC changed to a hand-written parser). Be aware that the C++ grammar contains ambiguities that can only be resolved by rules that are not contained in the grammar.
