extend.texi (Other Builtins): Actually use the macro argument in the documentation example for...

2006-09-11  Josh Triplett  <josh@freedesktop.org>

	* doc/extend.texi (Other Builtins): Actually use the macro
	argument in the documentation example for
	__builtin_types_compatible_p.

From-SVN: r116858

gcc/ChangeLog

+2006-09-11  Josh Triplett  <josh@freedesktop.org>
+
+	* doc/extend.texi (Other Builtins): Actually use the macro
+	argument in the documentation example for
+	__builtin_types_compatible_p.
+
 2006-09-11  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
 	PR rtl-optimization/28726

gcc/doc/extend.texi

@@ -5717,7 +5717,7 @@ depending on the arguments' types.  For example:
 @smallexample
 #define foo(x)                                                  \
   (@{                                                           \
-    typeof (x) tmp;                                             \
+    typeof (x) tmp = (x);                                       \
     if (__builtin_types_compatible_p (typeof (x), long double)) \
       tmp = foo_long_double (tmp);                              \
     else if (__builtin_types_compatible_p (typeof (x), double)) \