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c-parse.in (cast_expr): Move compound literals from here ...

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* c-parse.in (cast_expr): Move compound literals from here ...
	(primary): ... to here.  Use standard terminology "compound
	literal" instead of "constructor expression".

testsuite:
	* gcc.c-torture/compile/20010124-1.c: New test.

From-SVN: r39246
This commit is contained in:
Joseph Myers 2001-01-24 20:41:49 +00:00 committed by Joseph Myers
parent 9bad11e125
commit cedd825f0f
4 changed files with 48 additions and 29 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2001-01-24 Joseph S. Myers <jsm28@cam.ac.uk>
* c-parse.in (cast_expr): Move compound literals from here ...
(primary): ... to here. Use standard terminology "compound
literal" instead of "constructor expression".
2001-01-24 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.1, cpp.1: Regenerate.

58
gcc/c-parse.in
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@ -542,35 +542,6 @@ cast_expr:
type = groktypename ($2);
warn_strict_prototypes = SAVED_warn_strict_prototypes;
$$ = build_c_cast (type, $4); }
| '(' typename ')' '{'
{ start_init (NULL_TREE, NULL, 0);
$2 = groktypename ($2);
really_start_incremental_init ($2); }
initlist_maybe_comma '}' %prec UNARY
{ const char *name;
tree result = pop_init_level (0);
tree type = $2;
finish_init ();
if (pedantic && ! flag_isoc99)
pedwarn ("ISO C89 forbids constructor expressions");
if (TYPE_NAME (type) != 0)
{
if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
name = IDENTIFIER_POINTER (TYPE_NAME (type));
else
name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
}
else
name = "";
$$ = result;
if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
{
int failure = complete_array_type (type, $$, 1);
if (failure)
abort ();
}
}
;
expr_no_commas:
@ -659,6 +630,35 @@ primary:
| CONSTANT
| string
{ $$ = combine_strings ($1); }
| '(' typename ')' '{'
{ start_init (NULL_TREE, NULL, 0);
$2 = groktypename ($2);
really_start_incremental_init ($2); }
initlist_maybe_comma '}' %prec UNARY
{ const char *name;
tree result = pop_init_level (0);
tree type = $2;
finish_init ();
if (pedantic && ! flag_isoc99)
pedwarn ("ISO C89 forbids compound literals");
if (TYPE_NAME (type) != 0)
{
if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
name = IDENTIFIER_POINTER (TYPE_NAME (type));
else
name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
}
else
name = "";
$$ = result;
if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
{
int failure = complete_array_type (type, $$, 1);
if (failure)
abort ();
}
}
| '(' expr ')'
{ char class = TREE_CODE_CLASS (TREE_CODE ($2));
if (class == 'e' || class == '1'

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2001-01-24 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.c-torture/compile/20010124-1.c: New test.
2001-01-24 Nathan Sidwell <nathan@codesourcery.com>
* g++.old-deja/g++.pt/spec38.C: New test.

9
gcc/testsuite/gcc.c-torture/compile/20010124-1.c Normal file
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@ -0,0 +1,9 @@
/* Origin: testcase from Joseph Myers <jsm28@cam.ac.uk>, problem pointed
out in a post to comp.std.c
<980283801.3063.0.nnrp-07.c2deb1c2@news.demon.co.uk>
by Dibyendu Majumdar <dibyendu@mazumdar.demon.co.uk>.
Compound literals should be parsed as postfix expressions, rather than
as cast expressions. In particular, they are valid operands of sizeof. */
struct s { int a; int b; };
char x[((sizeof (struct s){ 1, 2 }) == sizeof (struct s)) ? 1 : -1];