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(initializer_constant_valid_p): Allow CONVERT_EXPR if its operand is ok. 

(build_c_cast): For cast to union, make a CONSTRUCTOR.

From-SVN: r1331
This commit is contained in:
Richard Stallman 1992-06-29 04:26:19 +00:00
parent fc54f37590
commit a4219ac740
1 changed files with 17 additions and 0 deletions
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17
gcc/c-decl.c
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@ -1227,6 +1227,23 @@ duplicate_decls (newdecl, olddecl)
TREE_THIS_VOLATILE (newdecl) |= TREE_THIS_VOLATILE (olddecl);
}
}
/* Permit char *foo () to match void *foo (...) if not pedantic. */
else if (!types_match
&& TREE_CODE (olddecl) == FUNCTION_DECL
&& TREE_CODE (newdecl) == FUNCTION_DECL
&& TREE_CODE (TREE_TYPE (olddecl)) == POINTER_TYPE
&& TREE_CODE (TREE_TYPE (newdecl)) == POINTER_TYPE
&& ((TREE_TYPE (TREE_TYPE (newdecl)) == void_type_node
&& TYPE_ARG_TYPES (TREE_TYPE (olddecl)) == 0
&& TREE_TYPE (TREE_TYPE (olddecl)) == char_type_node)
||
(TREE_TYPE (TREE_TYPE (newdecl)) == char_type_node
&& TYPE_ARG_TYPES (TREE_TYPE (newdecl)) == 0
&& TREE_TYPE (TREE_TYPE (olddecl)) == void_type_node)))
{
if (pedantic)
pedwarn_with_decl (newdecl, "conflicting types for `%s'");
}
else if (!types_match
/* Permit char *foo (int, ...); followed by char *foo ();
if not pedantic. */