[v3 PATCH] PR libstdc++/77288 and the newest proposed resolution for LWG 2756

[Ville Voutilainen]

On 22 September 2016 at 11:55, Christophe Lyon
<christophe.lyon@linaro.org> wrote:
> The new test 77288.cc fails on old arm targets (armv5t):
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:
> In function 'void test01()':
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:31:
> error: 'exception_ptr' is not a member of 'std'
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:31:
> error: template argument 1 is invalid
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:31:
> error: template argument 1 is invalid
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:32:
> error: 'exception_ptr' is not a member of 'std'
> /aci-gcc-fsf/sources/gcc-fsf/gccsrc/libstdc++-v3/testsuite/20_util/optional/77288.cc:32:
> error: template argument 1 is invalid


Does the attached patch fix the problem?
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