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| author | Jim Wilson <wilson@gcc.gnu.org> | 1993-04-12 12:44:47 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1993-04-12 12:44:47 -0700 |
| commit | 29df70e6ff84935cebf6aa0e568d1fbf8234fb31 (patch) | |
| tree | 9159a550cc7e21a881e3bb6e647bca9e2a95b28a /gcc | |
| parent | fa5679bb7f9bfd4a47059a9fa62f304aef606eaf (diff) | |
| download | gcc-29df70e6ff84935cebf6aa0e568d1fbf8234fb31.zip gcc-29df70e6ff84935cebf6aa0e568d1fbf8234fb31.tar.gz gcc-29df70e6ff84935cebf6aa0e568d1fbf8234fb31.tar.bz2 | |
(internal_build_compound_expr): When pedantic...
(internal_build_compound_expr): When pedantic, don't
simplify a COMPOUND_EXPR, so that it won't be mistaken for an
lvalue or an integer constant expression.
From-SVN: r4102
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/c-typeck.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c index e6d46ed..d7745e3 100644 --- a/gcc/c-typeck.c +++ b/gcc/c-typeck.c @@ -3788,7 +3788,9 @@ internal_build_compound_expr (list, first_p) rest = internal_build_compound_expr (TREE_CHAIN (list), FALSE); - if (! TREE_SIDE_EFFECTS (TREE_VALUE (list))) + /* When pedantic, a compound expression can be neither an lvalue + nor an integer constant expression. */ + if (! TREE_SIDE_EFFECTS (TREE_VALUE (list)) && ! pedantic) return rest; return build (COMPOUND_EXPR, TREE_TYPE (rest), TREE_VALUE (list), rest); |