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| author | Richard Kenner <kenner@gcc.gnu.org> | 1995-09-11 18:41:44 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1995-09-11 18:41:44 -0400 |
| commit | 692ce0fd55f4b1c5294371884ad1db1843069a26 (patch) | |
| tree | 00f99154144510124f6cf3e2bca700b1b02e3863 | |
| parent | f7d9d4a857ef5548b2023ebc88987552620864c6 (diff) | |
| download | gcc-692ce0fd55f4b1c5294371884ad1db1843069a26.zip gcc-692ce0fd55f4b1c5294371884ad1db1843069a26.tar.gz gcc-692ce0fd55f4b1c5294371884ad1db1843069a26.tar.bz2 | |
(redeclaration_error_message): For TYPE_DECLs, return 0 if
TYPE_MAIN_VARIANT of old type is same as new type.
From-SVN: r10311
| -rw-r--r-- | gcc/c-decl.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index def045f..b6ffd61 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -2385,6 +2385,15 @@ redeclaration_error_message (newdecl, olddecl) { if (flag_traditional && TREE_TYPE (newdecl) == TREE_TYPE (olddecl)) return 0; + /* pushdecl creates distinct types for TYPE_DECLs by calling + build_type_copy, so the above comparison generally fails. We do + another test against the TYPE_MAIN_VARIANT of the olddecl, which + is equivalent to what this code used to do before the build_type_copy + call. The variant type distinction should not matter for traditional + code, because it doesn't have type qualifiers. */ + if (flag_traditional + && TYPE_MAIN_VARIANT (TREE_TYPE (olddecl)) == TREE_TYPE (newdecl)) + return 0; if (DECL_IN_SYSTEM_HEADER (olddecl) || DECL_IN_SYSTEM_HEADER (newdecl)) return 0; return "redefinition of `%s'"; |