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re PR c++/13683 (bogus warning about passing non-PODs through ellipsis)

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PR c++/13683
	* call.c (convert_arg_to_ellipsis): Don't emit a warning if within
	a sizeof expression.block

From-SVN: r76963
This commit is contained in:
Giovanni Bajo 2004-01-30 15:08:37 +00:00
parent 3e2cc1d1c7
commit 5840af0f85
2 changed files with 15 additions and 5 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2004-01-30 Giovanni Bajo <giovannibajo@gcc.gnu.org>
PR c++/13683
* call.c (convert_arg_to_ellipsis): Don't emit a warning if within
a sizeof expression.block
2004-01-29 Mark Mitchell <mark@codesourcery.com> 2004-01-29 Mark Mitchell <mark@codesourcery.com>
PR c++/13883 PR c++/13883

14
gcc/cp/call.c
View File

@ -4127,14 +4127,18 @@ convert_arg_to_ellipsis (tree arg)
arg = require_complete_type (arg); arg = require_complete_type (arg);
if (arg != error_mark_node && ! pod_type_p (TREE_TYPE (arg))) if (arg != error_mark_node
&& !pod_type_p (TREE_TYPE (arg)))
{ {
/* Undefined behavior [expr.call] 5.2.2/7. We used to just warn /* Undefined behavior [expr.call] 5.2.2/7. We used to just warn
here and do a bitwise copy, but now cp_expr_size will abort if we here and do a bitwise copy, but now cp_expr_size will abort if we
try to do that. */ try to do that.
warning ("cannot pass objects of non-POD type `%#T' through `...'; \ If the call appears in the context of a sizeof expression,
call will abort at runtime", there is no need to emit a warning, since the expression won't be
TREE_TYPE (arg)); evaluated. We keep the builtin_trap just as a safety check. */
if (!skip_evaluation)
warning ("cannot pass objects of non-POD type `%#T' through `...'; "
"call will abort at runtime", TREE_TYPE (arg));
arg = call_builtin_trap (TREE_TYPE (arg)); arg = call_builtin_trap (TREE_TYPE (arg));
} }