doc: Update -fchar8_t documentation

Since C++20 P2513R4, char8_t Compatibility and Portability Fix it is
no longer true that

  char ca[] = u8"xx";

causes an error so adjust the example for -fchar8_t.

gcc/ChangeLog:

	* doc/invoke.texi: Update -fchar8_t documentation.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 1eda0e0396b1dc0e3cb7f2cea3bb57b914eead57..51447a78584af9df7b70a465e4d272a1656d4e59 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -3057,8 +3057,6 @@ following code is well-formed under ISO C++11, but is ill-formed when
 @option{-fchar8_t} is specified.
 
 @smallexample
-char ca[] = u8"xx";     // error: char-array initialized from wide
-                        //        string
 const char *cp = u8"xx";// error: invalid conversion from
                         //        `const char8_t*' to `const char*'
 int f(const char*);