karl@haddock.ISC.COM (Karl Heuer) (08/22/87)
In article <2196@xanth.UUCP> kent@xanth.UUCP (Kent Paul Dolan) writes: >[Symbolics machines require that setjmp be a builtin] There's an interesting connection between this and my earlier ramblings about label variables and pointers. If labels were real objects (with declarations, etc.), perhaps "long label" could be a variant that includes the stack info for non-local gotos. Then "jmp_buf" becomes "long label", "if (setjmp(j))" becomes "come_from = 0; j: if (come_from)", and "longjmp(j, x)" becomes "come_from = x; goto j". Naaaah. (Maybe if I were designing a new language from scratch...) Karl W. Z. Heuer (ima!haddock!karl or karl@haddock.isc.com), The Walking Lint