c-common.c (reswords): Add _Imaginary.

	* c-common.c (reswords): Add _Imaginary.
	* c-common.c (enum rid): Add RID_IMAGINARY.

testsuite:
	* gcc.dg/c99-complex-3.c: New test.

From-SVN: r147075

gcc/ChangeLog

+2009-05-03  Joseph Myers  <joseph@codesourcery.com>
+
+	* c-common.c (reswords): Add _Imaginary.
+	* c-common.c (enum rid): Add RID_IMAGINARY.
+
 2009-05-03  Paolo Bonzini  <bonzini@gnu.org>
 
 	* tree.h (TYPE_VECTOR_OPAQUE): Fix documentation.

gcc/c-common.c

@@ -730,6 +730,7 @@ const struct c_common_resword c_common_reswords[] =
 {
   { "_Bool",		RID_BOOL,      D_CONLY },
   { "_Complex",		RID_COMPLEX,	0 },
+  { "_Imaginary",	RID_IMAGINARY, D_CONLY },
   { "_Decimal32",       RID_DFLOAT32,  D_CONLY | D_EXT },
   { "_Decimal64",       RID_DFLOAT64,  D_CONLY | D_EXT },
   { "_Decimal128",      RID_DFLOAT128, D_CONLY | D_EXT },

gcc/c-common.h

@@ -63,6 +63,10 @@ enum rid
   /* ObjC */
   RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY,
 
+  /* C (reserved and imaginary types not implemented, so any use is a
+     syntax error) */
+  RID_IMAGINARY,
+
   /* C */
   RID_INT,     RID_CHAR,   RID_FLOAT,    RID_DOUBLE, RID_VOID,
   RID_ENUM,    RID_STRUCT, RID_UNION,    RID_IF,     RID_ELSE,

gcc/testsuite/ChangeLog

 2009-05-03  Joseph Myers  <joseph@codesourcery.com>
 
+	* gcc.dg/c99-complex-3.c: New test.
+
+2009-05-03  Joseph Myers  <joseph@codesourcery.com>
+
 	* gcc.dg/cpp/utf8-5byte-1.c: New test.
 
 2009-05-02  Joseph Myers  <joseph@codesourcery.com>

gcc/testsuite/gcc.dg/c99-complex-3.c

+/* Test for _Imaginary: when imaginary types are not implemented, this
+   is still a keyword and must give a syntax error if used rather than
+   being treated as an identifier.  */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
+
+float _Imaginary; /* { dg-error "expected" } */