PR c++/21025

	* typeck.c (cxx_sizeof_or_alignof_type): Check whether the type to
	which sizeof/alignof is dependent, rather than just whether we are
	processing_template_decl.

	PR c++/21025
	* g++.dg/template/sizeof9.C: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@98252 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 739f993..81e75b9 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2005-04-16  Mark Mitchell  <mark@codesourcery.com>
+
+       PR c++/21025
+       * typeck.c (cxx_sizeof_or_alignof_type): Check whether the type to
+       which sizeof/alignof is dependent, rather than just whether we are
+       processing_template_decl.
+       
 2005-04-17  Kazu Hirata  <kazu@cs.umass.edu>
 
        * cp-tree.h (LOOKUP_GLOBAL): Remove.

diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 272dc86..6ccffe1 100644 (file)
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -1221,7 +1221,7 @@ cxx_sizeof_or_alignof_type (tree type, enum tree_code op, bool complain)
   if (type == error_mark_node)
     return error_mark_node;
   
-  if (processing_template_decl)
+  if (dependent_type_p (type))
     {
       value = build_min (op, size_type_node, type);
       TREE_READONLY (value) = 1;

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9b5b6e1..f9b274d 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2005-04-16  Mark Mitchell  <mark@codesourcery.com>
+
+       PR c++/21025
+       * typeck.c (cxx_sizeof_or_alignof_type): Check whether the type to
+       which sizeof/alignof is dependent, rather than just whether we are
+       processing_template_decl.
+       
 2005-04-15  Thomas Koenig  <Thomas.Koenig@online.de>
 
        * gfortran.fortran-torture/execute/intrinsic_spread.f90:

diff --git a/gcc/testsuite/g++.dg/template/sizeof9.C b/gcc/testsuite/g++.dg/template/sizeof9.C
new file mode 100644 (file)
index 0000000..8d9ec95
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/sizeof9.C
@@ -0,0 +1,6 @@
+// PR c++/21025
+
+template<int N> struct X { char x[N]; };
+template<typename T> X<1 + sizeof(T) - sizeof(T)> F(T const &);
+template<int N> struct S { int d() { F(1); } };
+