[v3 PATCH] Implement P0403R1, Literal suffixes for basic_string_view.

[François Dumont]

On 13/11/2016 21:41, Ville Voutilainen wrote:
> Tested on Linux-x64.
>
> 2016-11-13  Ville Voutilainen<ville.voutilainen@gmail.com>
>
>      Implement P0403R1, Literal suffixes for basic_string_view.
>      * include/std/string_view
>      (operator""sv(const char*, size_t)): New.
>      (operator""sv(const wchar_t*, size_t)): Likewise.
>      (operator""sv(const char16_t*, size_t)): Likewise.
>      (operator""sv(const char32_t*, size_t)): Likewise.
>      * testsuite/21_strings/basic_string_view/literals/types.cc: New.
>      * testsuite/21_strings/basic_string_view/literals/values.cc: Likewise.
>      * testsuite/experimental/string_view/literals/values.cc: Add
>      tests for literals with embedded NULs.

Just a minor issue in several assert messages:

+  static_assert(std::is_same<decltype("Hello"sv), std::string_view>::value,
+		"\"Hello\"s is std::string_view");

should say "\"Hello\"sv is...

I considered using string_view in my recent print_word evolution in debug.cc. With this patch it would be a nicer way to deal with literals.

François