Mercurial > urweb

view demo/ref.ur @ 1893:9a1097954188

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
compileC: Link libraries in the right order This is needed, at least on recent Ubuntu, to fix this linker error when compiling any Ur/Web application: ld: /tmp/webapp.o: undefined reference to symbol 'uw_write' Signed-off-by: Anders Kaseorg <andersk@mit.edu> --- src/compiler.sml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
author Anders Kaseorg <andersk@mit.edu>
date Thu, 21 Nov 2013 14:32:11 -0500
parents 5819fb63c93a
children
line wrap: on
line source
structure IR = RefFun.Make(struct
                               type data = int
                           end)

structure SR = RefFun.Make(struct
                               type data = string
                           end)

fun mutate () =
    ir <- IR.new 3;
    ir' <- IR.new 7;
    sr <- SR.new "hi";

    IR.write ir' 10;

    iv <- IR.read ir;
    iv' <- IR.read ir';
    sv <- SR.read sr;

    IR.delete ir;
    IR.delete ir';
    SR.delete sr;

    return <xml><body>
      {[iv]}, {[iv']}, {[sv]}
    </body></xml>

fun main () = return <xml><body>
  <form><submit action={mutate} value="Do some pointless stuff"/></form>
</body></xml>