M R Swami Reddy wrote: > I am using the gcc with libstdc++. In this, optabs.c use the > _builtin_setjmp function. > Could you please let me know, from where (ie from C libs or gcc sources) > this builtin_setjmp > definition will be observed? http://gcc.gnu.org/svn/gcc/trunk/gcc/builtins.c expand_builtin_setjmp_*, expand_builtin_longjmp Andrew.