Disable -Wliteral-suffix for standard UDLs

* include/bits/basic_string.h (operator""s): Add pragmas to disable
	-Wliteral-suffix warnings.
	* include/experimental/string_view (operator""sv): Likewise.
	* include/std/chrono (operator""h, operator""min, operator""s)
	(operator""ms, operator""us, operator""ns): Likewise.
	* include/std/complex (operator""if, operator""i, operator""il):
	Likewise.
	* include/std/string_view (operator""sv): Likewise.
	* testsuite/20_util/duration/literals/range.cc: Adjust dg-error.

From-SVN: r255320

libstdc++-v3/ChangeLog

@@ -1,5 +1,15 @@
 2017-12-01  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/bits/basic_string.h (operator""s): Add pragmas to disable
+	-Wliteral-suffix warnings.
+	* include/experimental/string_view (operator""sv): Likewise.
+	* include/std/chrono (operator""h, operator""min, operator""s)
+	(operator""ms, operator""us, operator""ns): Likewise.
+	* include/std/complex (operator""if, operator""i, operator""il):
+	Likewise.
+	* include/std/string_view (operator""sv): Likewise.
+	* testsuite/20_util/duration/literals/range.cc: Adjust dg-error.
+
 	* include/bits/locale_facets_nonio.tcc (money_get::_M_extract): Add
 	fallthrough comment.
 

libstdc++-v3/include/bits/basic_string.h

@@ -6665,6 +6665,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   {
   inline namespace string_literals
   {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wliteral-suffix"
     _GLIBCXX_DEFAULT_ABI_TAG
     inline basic_string<char>
     operator""s(const char* __str, size_t __len)
@@ -6689,6 +6691,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     { return basic_string<char32_t>{__str, __len}; }
 #endif
 
+#pragma GCC diagnostic pop
   } // inline namespace string_literals
   } // inline namespace literals
 

libstdc++-v3/include/experimental/string_view

@@ -644,6 +644,8 @@ namespace experimental
   {
   inline namespace string_view_literals
   {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wliteral-suffix"
     inline constexpr basic_string_view<char>
     operator""sv(const char* __str, size_t __len) noexcept
     { return basic_string_view<char>{__str, __len}; }
@@ -663,6 +665,7 @@ namespace experimental
     operator""sv(const char32_t* __str, size_t __len) noexcept
     { return basic_string_view<char32_t>{__str, __len}; }
 #endif
+#pragma GCC diagnostic pop
   } // namespace string_literals
   } // namespace literals
 } // namespace experimental

libstdc++-v3/include/std/chrono

@@ -884,6 +884,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   {
   inline namespace chrono_literals
   {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wliteral-suffix"
     template<typename _Rep, unsigned long long _Val>
       struct _Checked_integral_constant
       : integral_constant<_Rep, static_cast<_Rep>(_Val)>
@@ -958,6 +960,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       operator""ns()
       { return __check_overflow<chrono::nanoseconds, _Digits...>(); }
 
+#pragma GCC diagnostic pop
   } // inline namespace chrono_literals
   } // inline namespace literals
 
@@ -966,7 +969,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     using namespace literals::chrono_literals;
   } // namespace chrono
 
-#endif // __cplusplus > 201103L
+#endif // C++14
 
   // @} group chrono
 

libstdc++-v3/include/std/complex

@@ -1941,6 +1941,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
 inline namespace literals {
 inline namespace complex_literals {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wliteral-suffix"
 #define __cpp_lib_complex_udls 201309
 
   constexpr std::complex<float>
@@ -1967,6 +1969,7 @@ inline namespace complex_literals {
   operator""il(unsigned long long __num)
   { return std::complex<long double>{0.0L, static_cast<long double>(__num)}; }
 
+#pragma GCC diagnostic pop
 } // inline namespace complex_literals
 } // inline namespace literals
 

libstdc++-v3/include/std/string_view

@@ -626,6 +626,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   {
   inline namespace string_view_literals
   {
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wliteral-suffix"
     inline constexpr basic_string_view<char>
     operator""sv(const char* __str, size_t __len) noexcept
     { return basic_string_view<char>{__str, __len}; }
@@ -645,6 +647,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     operator""sv(const char32_t* __str, size_t __len) noexcept
     { return basic_string_view<char32_t>{__str, __len}; }
 #endif
+#pragma GCC diagnostic pop
   } // namespace string_literals
   } // namespace literals
 

libstdc++-v3/testsuite/20_util/duration/literals/range.cc

@@ -26,6 +26,6 @@ test01()
 
   // std::numeric_limits<int64_t>::max() == 9223372036854775807;
   auto h = 9223372036854775808h;
-  // { dg-error "cannot be represented" "" { target *-*-* } 892 }
+  // { dg-error "cannot be represented" "" { target *-*-* } 894 }
 }
 // { dg-prune-output "in constexpr expansion" } // needed for -O0