<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On Jul 31, 2007, at 1:30 AM, Anton Korobeynikov wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Hello, Christopher.</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV> <BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">+<SPAN class="Apple-converted-space"> </SPAN>tree RestrictArgTy = (DeclArgs) ? DeclArgs->type.common.type : ArgTy;</DIV> </BLOCKQUOTE><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">This looks very dangerous. Why can't standard TREE_ macro be used here?</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Also, please add a comment describing what's going here (why you need</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">such thing) :)</DIV></BLOCKQUOTE><BR><DIV>What specifically is dangerous about this?</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I'm no GCC expert, but the DECL_ARGUMENTS() seems to be the only place where the restrict qualifier is preserved under C++. While debugging I could inspect the data structure to see that the information I needed was there, but looking in tree.h I found no TREE_... macro that got me there.</DIV></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>The ?: came about because while bootstrapping GCC there were cases when DelArgs was NULL. It seems a bit of a hack, I know, but it's the best I could figure and it seems to work properly in my tests. If you have a suggestion on a more proper way to consistently get the restrict qualifier I'm all ears. =)</DIV><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>--</DIV><DIV>Christopher Lamb</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN> </DIV><BR></BODY></HTML>