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| author | Stuart Dootson <u404261@methods.local> | 2019-10-14 14:14:45 +0100 |
|---|---|---|
| committer | Murray Cumming <murrayc@murrayc.com> | 2019-10-25 12:57:31 +0200 |
| commit | b74406a54b844f41ec1dc5c535c4fa07336fc77d (patch) | |
| tree | 78b6a93d7d9de946eebbf3ed6b7417254386e9c7 | |
| parent | 5586a71f42b047c2542425a6a296a557d7593e6b (diff) | |
| download | sigc++-b74406a54b844f41ec1dc5c535c4fa07336fc77d.tar.gz | |
MSVC build: Fix 'C4127: conditional expression is constant' warning
| -rw-r--r-- | sigc++/tuple-utils/tuple_for_each.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sigc++/tuple-utils/tuple_for_each.h b/sigc++/tuple-utils/tuple_for_each.h index 15e8a20..e179ffe 100644 --- a/sigc++/tuple-utils/tuple_for_each.h +++ b/sigc++/tuple-utils/tuple_for_each.h @@ -99,13 +99,11 @@ tuple_for_each(T&& t, T_extras&&... extras) // We use std::decay_t<> because tuple_size is not defined for references. constexpr auto size = std::tuple_size<std::decay_t<T>>::value; - if (size == 0) + if constexpr (size != 0) { - return; + detail::tuple_for_each_impl<T_visitor, size, T_extras...>::tuple_for_each( + std::forward<T>(t), std::forward<T_extras>(extras)...); } - - detail::tuple_for_each_impl<T_visitor, size, T_extras...>::tuple_for_each( - std::forward<T>(t), std::forward<T_extras>(extras)...); } } // namespace internal |