Hi!
When submitting the P1902R1 patch for missing feature macros, I
completely forgot that we can't claim consteval support, because we have
the
/* FIXME: For now. */
if (virtualp && (inlinep & 8) != 0)
{
sorry_at (DECL_SOURCE_LOCATION (decl),
"%<virtual%> %<consteval%> method %qD not supported yet",
decl);
inlinep &= ~8;
}
limitation in consteval support. I've tried to make some progress on it
in PR88335, but am stuck, so this patch instead comments out this and
updates cxx-status.html to explain the partial support.
Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk and
wwwdocs?
2019-11-29 Jakub Jelinek <ja...@redhat.com>
* c-cppbuiltin.c (c_cpp_builtins): Don't define __cpp_consteval for
now.
* g++.dg/cpp2a/feat-cxx2a.C: Don't test __cpp_consteval for now.
--- gcc/c-family/c-cppbuiltin.c.jj 2019-11-28 09:02:23.705869433 +0100
+++ gcc/c-family/c-cppbuiltin.c 2019-11-28 18:59:20.407918255 +0100
@@ -999,7 +999,7 @@ c_cpp_builtins (cpp_reader *pfile)
cpp_define (pfile, "__cpp_designated_initializers=201707L");
cpp_define (pfile, "__cpp_constexpr_in_decltype=201711L");
cpp_define (pfile, "__cpp_conditional_explicit=201806L");
- cpp_define (pfile, "__cpp_consteval=201811L");
+ /* cpp_define (pfile, "__cpp_consteval=201811L"); */
cpp_define (pfile, "__cpp_constinit=201907L");
cpp_define (pfile, "__cpp_deduction_guides=201907L");
cpp_define (pfile, "__cpp_nontype_template_parameter_class=201806L");
--- gcc/testsuite/g++.dg/cpp2a/feat-cxx2a.C.jj 2019-11-28 09:02:25.331844453
+0100
+++ gcc/testsuite/g++.dg/cpp2a/feat-cxx2a.C 2019-11-28 19:00:59.459400136
+0100
@@ -520,11 +520,13 @@
# error "__cpp_constexpr_in_decltype != 201711"
#endif
+/* Not supported fully yet:
#ifndef __cpp_consteval
# error "__cpp_consteval"
#elif __cpp_consteval != 201811
# error "__cpp_consteval != 201811"
#endif
+*/
#ifndef __cpp_concepts
# error "__cpp_concepts"
Jakub
diff --git a/htdocs/projects/cxx-status.html b/htdocs/projects/cxx-status.html
index c6ff78e1..c8655a17 100644
--- a/htdocs/projects/cxx-status.html
+++ b/htdocs/projects/cxx-status.html
@@ -288,7 +288,8 @@
<tr>
<td> Immediate functions (consteval) </td>
<td><a href="http://wg21.link/p1073r3";>P1073R3</a></td>
- <td class="supported"> <a href="../gcc-10/changes.html#cxx">10</a> </td>
+ <td class="supported"> <a href="../gcc-10/changes.html#cxx">10</a>
+ (partial, no <code>consteval virtual</code> support) </td>
<td> __cpp_consteval >= 201811 </td>
</tr>
<tr>
