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re PR c++/23691 (mpl_::bool_<false>::value' is not a valid template argument for type bool' because it is a non-constant expression)

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PR c++/23691
	* decl2.c (mark_used): Instantiate static data members initialized
	by constants, even in a template.

	PR c++/23691
	* g++.dg/template/static16.C: New test.

From-SVN: r104041
This commit is contained in:
Mark Mitchell 2005-09-08 18:56:42 +00:00 committed by Mark Mitchell
parent 0348d6fd85
commit 024f1251b5
3 changed files with 40 additions and 1 deletions
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6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2005-09-08 Mark Mitchell <mark@codesourcery.com>
PR c++/23691
* decl2.c (mark_used): Instantiate static data members initialized
by constants, even in a template.
2005-09-08 Andrew Pinski <pinskia@physics.uc.edu>
PR obj-c++/16816

30
gcc/cp/decl2.c
View File

@ -3217,12 +3217,38 @@ check_default_args (tree x)
}
}
/* Mark DECL as "used" in the program. If DECL is a specialization or
implicitly declared class member, generate the actual definition. */
void
mark_used (tree decl)
{
HOST_WIDE_INT saved_processing_template_decl = 0;
TREE_USED (decl) = 1;
if (processing_template_decl || skip_evaluation)
/* If we don't need a value, then we don't need to synthesize DECL. */
if (skip_evaluation)
return;
/* Normally, we can wait until instantiation-time to synthesize
DECL. However, if DECL is a static data member initialized with
a constant, we need the value right now because a reference to
such a data member is not value-dependent. */
if (processing_template_decl)
{
if (TREE_CODE (decl) == VAR_DECL
&& DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl)
&& DECL_CLASS_SCOPE_P (decl)
&& !dependent_type_p (DECL_CONTEXT (decl)))
{
/* Pretend that we are not in a template so that the
initializer for the static data member will be full
simplified. */
saved_processing_template_decl = processing_template_decl;
processing_template_decl = 0;
}
else
return;
}
if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl)
&& !TREE_ASM_WRITTEN (decl))
@ -3282,6 +3308,8 @@ mark_used (tree decl)
need. */
instantiate_decl (decl, /*defer_ok=*/true,
/*expl_inst_class_mem_p=*/false);
processing_template_decl = saved_processing_template_decl;
}
#include "gt-cp-decl2.h"

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2005-09-08 Mark Mitchell <mark@codesourcery.com>
PR c++/23691
* g++.dg/template/static16.C: New test.
2005-09-08 Richard Sandiford <richard@codesourcery.com>
PR fortran/15326