libstdc++-v3 · bb54e0b8794dfeea1f59ed9ca6433df1eccb85e9 · lvzhengyang / riscv-gcc-1

libstdc++: Add __cpp_lib_unwrap_ref feature test macro · bb54e0b8

We already defined the traits in <type_traits> as now required by LWG
3348, but the macro was missing. This adds it.

	* include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
	* include/std/version (__cpp_lib_unwrap_ref): Likewise.
	* testsuite/20_util/unwrap_reference/1.cc: Check macro.
	* testsuite/20_util/unwrap_reference/3.cc: New test.

committed Feb 19, 2020

bb54e0b8

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