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authorcharlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4>2008-05-28 13:05:35 +0000
committercharlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4>2008-05-28 13:05:35 +0000
commit159f57c8342cd9feb7259a365838288cf2eeeabd (patch)
treefb31690627a5834458cdbda545cabae658c2046f /gcc/ada/sem_attr.adb
parente2793852c3d43623c06d60c76de6a0bed0eef25b (diff)
downloadgcc-159f57c8342cd9feb7259a365838288cf2eeeabd.tar.gz
2008-05-28 Robert Dewar <dewar@adacore.com>
* gnat_rm.texi: Add note on Old giving warning when applied to constant * sem_attr.adb (Analyze_Attribute, case Old): Give warning if prefix is a constant git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@136078 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ada/sem_attr.adb')
-rw-r--r--gcc/ada/sem_attr.adb7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb
index 0cb2ace755e..14f9102d369 100644
--- a/gcc/ada/sem_attr.adb
+++ b/gcc/ada/sem_attr.adb
@@ -3501,6 +3501,13 @@ package body Sem_Attr is
Error_Attr ("attribute % cannot apply to limited objects", P);
end if;
+ if Is_Entity_Name (P)
+ and then Is_Constant_Object (Entity (P))
+ then
+ Error_Msg_N
+ ("?attribute Old applied to constant has no effect", P);
+ end if;
+
-- Check that the expression does not refer to local entities
Check_Local : declare