search for: binding_is_lock

...gC1ERKSs[Rcpp::no_such_binding::no_such_binding(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)]+0x1cd): undefined reference to `_Unwind_SjLj_Resume' C:/R-2.15.2/library/Rcpp/lib/i386/libRcpp.a(Environment.o):Environment.cpp:(.text$_ZN4Rcpp17binding_is_lockedC1ERKSs[Rcpp::binding_is_locked::binding_is_locked(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)]+0xf): undefined reference to `__gxx_personality_sj0' C:/R-2.15.2/library/Rcpp/lib/i386/libRcpp.a(Environment.o):Environment.cpp:(.text$_ZN4R...

bindingIsLocked applied to a locked binding returns a 'logical' that is niether true nor false. Martin > e <- new.env() > e$x <- 1 > e$y <- 2 > lockBinding("x", e) NULL > bindingIsLocked("x", e) [1] TRUE > bindingIsLocked("x", e)==TRUE [1] FALSE > bindingIsLocked("x", e)==FALSE [1] FALSE >