(finish_struct): Handle nested struct redefinitions.

From-SVN: r1593

(finish_struct): Handle nested struct redefinitions.
From-SVN: r1593
8d7bbe5f · Richard Stallman · e0b382b1 · 8d7bbe5f
Commit 8d7bbe5f authored Jul 15, 1992 by Richard Stallman
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gcc/c-decl.c
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--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -4664,6 +4664,11 @@ finish_struct (t, fieldlist)
      if (C_DECL_VARIABLE_SIZE (x))
 	C_TYPE_VARIABLE_SIZE (t) = 1;

+      /* Detect invalid nested redefinition.  */
+      if (TREE_TYPE (x) == t)
+	error ("nested redefinition of `%s'",
+	       IDENTIFIER_POINTER (TYPE_NAME (t)));
+
      /* Detect invalid bit-field size.  */
      if (DECL_INITIAL (x))
 	STRIP_NOPS (DECL_INITIAL (x));