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<body class='hmmessage'><div dir='ltr'>Isn't it safe to take the address of a global?<br><br><br>I have something like this:<br><br><br>CONST UID_INTEGER = 1234;<br>CONST UID_FLOAT = 4567;<br> ... several more ...<br><br><br>TYPE CType = OBJECT .. END;<br><br><br>VAR t_int: CType := ...;<br>VAR t_float: CType := ...;<br> ... several more ...<br><br><br>MapTypeIdToType(UID_INTEGER, t_int);<br>MapTypeIdToType(UID_FLOAT, FLOAT);<br> ... several more ...<br><br><br>but what I really want is more like:<br><br><br>TYPE RECORD = BuiltinUid_t = <br> typeid: INTEGER;<br> ctype: REF CType;<br>END;<br><br><br>CONST BuiltinUids = ARRAY OF BuiltinUids {<br> BuiltinUids{UID_INTEGER, &t_int},<br> BuiltinUids{UID_FLOAT, &t_float},<br> ... several more ...<br>};<br><br><br>FOR i := FIRST(BuiltinUids) TO LAST(BuiltinUids) DO<br> MapTypeIdToType(BuiltinUids[i].typeid, BuiltinUids[i].ctype);<br>END;<br><br><br>Heck, even if these weren't global, is it that unreasonble,<br>from the programmer's point of view, for the language/compiler<br>to do some pointer escape analysis and let me take the address<br>of a local, as long as I don't store it somewhere that outlives<br>the local?<br><br><br>You can see this particular pattern currently in<br>m3-sys/m3cc/gcc/gcc/m3cg/parse.c<br><br><br>and I'm pretty busy now working on m3-sys/m3back/src/M3C.m3<br>where I encounter this.<br><br><br>Working in safe languages can be frustrating...<br><br><br>Thank you,<br> - Jay<br> </div></body>
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