"anshul goel" <goel.ans@xxxxxxxxx> writes: > i am not getting in which file tokens are generated in c - gcc. > Please send me file name with complete path , as soon as possible. Please do not send e-mail to both gcc-help@xxxxxxxxxxx and gcc@xxxxxxxxxxxx This kind of question is appropriate for gcc-help@xxxxxxxxxxx only. Thanks. Unfortunately I don't really understand your question. If you are asking about the parser, then look at c-lex.c and c-parser.c. Ian