On 03/12/20 19:25 +0000, Jonathan Wakely wrote:
Thanks to Jakub's addition of the built-in, we can add this to the library now. The compiler tests for the built-in are quite extensive, including verifying the constraints, so this only adds minimal tests to the library testsuite.This doesn't add a new _GLIBCXX_HAVE_BUILTIN_BIT_CAST because using __has_builtin(__builtin_bit_cast) works for GCC and versions of Clang that provide the built-in. libstdc++-v3/ChangeLog: PR libstdc++/93121 * include/std/bit (__cpp_lib_bit_cast, bit_cast): Define. * include/std/version (__cpp_lib_bit_cast): Define. * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: New test. * testsuite/26_numerics/bit/bit.cast/version.cc: New test.
This fixes some typos in the new tests. Tested x86_64-linux. Committed to trunk.
commit 656131e06aa76ba3cb50305c07cf5c8ee79fce44 Author: Jonathan Wakely <[email protected]> Date: Thu Dec 3 19:30:02 2020 libstdc++: Fix typos in #error strings libstdc++-v3/ChangeLog: * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Remove stray word from copy&paste. * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise. diff --git a/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/bit_cast.cc b/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/bit_cast.cc index b451f152b47..138ceb1c4d6 100644 --- a/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/bit_cast.cc +++ b/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/bit_cast.cc @@ -21,9 +21,9 @@ #include <bit> #ifndef __cpp_lib_bit_cast -# error "Feature-test macro for bit_cast wait missing in <bit>" +# error "Feature-test macro for bit_cast missing in <bit>" #elif __cpp_lib_bit_cast != 201806L -# error "Feature-test macro for bit_cast wait has wrong value in <bit>" +# error "Feature-test macro for bit_cast has wrong value in <bit>" #endif #include <cstdint> diff --git a/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/version.cc b/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/version.cc index 688d44bbb89..82e97543481 100644 --- a/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/version.cc +++ b/libstdc++-v3/testsuite/26_numerics/bit/bit.cast/version.cc @@ -21,7 +21,7 @@ #include <version> #ifndef __cpp_lib_bit_cast -# error "Feature-test macro for bit_cast wait missing in <version>" +# error "Feature-test macro for bit_cast missing in <version>" #elif __cpp_lib_bit_cast != 201806L -# error "Feature-test macro for bit_cast wait has wrong value in <version>" +# error "Feature-test macro for bit_cast has wrong value in <version>" #endif
