fixed db_stress.cc build error (#5307)
Summary:
when building this file using Xcode 10.2.1 in MacOSX10.14, the compiler report this error:
`
rocksdb/tools/db_stress.cc:3613:33: error: implicit instantiation of
undefined template 'std::__1::array<std::__1::basic_string<char>, 10>'
std::array<std::string, 10> keys = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
/usr/include/c++/v1/__tuple:223:64: note:
template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
1 error generated.
`
if including array, this error will be fixed.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5307
Differential Revision: D15475217
Pulled By: sagar0
fbshipit-source-id: b04a7658c2ca2573157028863b3a80f5ab52b9de