Fix guard for constexpr tests

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Krystian Stasiowski committed 2020-02-02 23:26:47 -05:00
1 parent 9772809002
commit 479c10b193
1 file changed
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@@ -11,7 +11,7 @@
#include <boost/static_string/static_string.hpp>
// char_traits aren't constexpr until c++17
#ifdef BOOST_STATIC_STRING_STANDARD_VERSION <= 201703L
#ifdef BOOST_STATIC_STRING_STANDARD_VERSION <= 201703L && BOOST_STATIC_STRING_STANDARD_VERSION >= 201402L
struct cxper_char_traits
{
using char_type = char;