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R version 2.7.0 Under development (unstable) (2007-09-21 r42937)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> #### STRICT test suite in the spirit of no-segfaults,
> #### but with explicit statements.
> 
> options(error=expression(NULL))
> stop("test of `options(error=expression(NULL))'")
Error: test of `options(error=expression(NULL))'
> 
> if(FALSE) {
+ ## these ought to work on machines with enough memory
+ ## These segfaulted in 1.3.x ,  give "could not allocate" errors now
+   integer(2^30+1)
+    double(2^30+1)
+   complex(2^30+1)
+ character(2^30+1)
+ vector("list", 2^30+2)
+ }
> 
> getenv("USER") # should produce correct error message.
Error: 'getenv' is defunct.
Use 'Sys.getenv' instead.
See help("Defunct")
> 
> ## bad infinite recursion / on.exit / ... interactions
> bar <- function() 1+1
> foo <- function() { on.exit(bar()); foo() }
> foo() # now simple "infinite recursion"
Error: evaluation nested too deeply: infinite recursion / options(expressions=)?
>