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author | louiz’ <louiz@louiz.org> | 2018-03-17 17:28:41 +0100 |
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committer | louiz’ <louiz@louiz.org> | 2018-03-17 17:28:41 +0100 |
commit | d0e3c71b91f1a1c1780158789fd42b8ac7209495 (patch) | |
tree | e5e4f8055e73437318a36bddebd1c6d426fdce8e /src/database/index.hpp | |
parent | d62ca9f87906be6f046fe9d07afb8bfb69c166e3 (diff) | |
download | biboumi-d0e3c71b91f1a1c1780158789fd42b8ac7209495.tar.gz biboumi-d0e3c71b91f1a1c1780158789fd42b8ac7209495.tar.bz2 biboumi-d0e3c71b91f1a1c1780158789fd42b8ac7209495.tar.xz biboumi-d0e3c71b91f1a1c1780158789fd42b8ac7209495.zip |
Revert "Use if constexpr to make things a lot more readable"
This reverts commit d62ca9f87906be6f046fe9d07afb8bfb69c166e3.
Diffstat (limited to 'src/database/index.hpp')
-rw-r--r-- | src/database/index.hpp | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/src/database/index.hpp b/src/database/index.hpp index 094a36a..30766ab 100644 --- a/src/database/index.hpp +++ b/src/database/index.hpp @@ -8,16 +8,19 @@ namespace { template <std::size_t N=0, typename... T> -void add_column_name(std::string& out) +typename std::enable_if<N == sizeof...(T), void>::type +add_column_name(std::string&) +{ } + +template <std::size_t N=0, typename... T> +typename std::enable_if<N < sizeof...(T), void>::type +add_column_name(std::string& out) { - if constexpr(N < sizeof...(T)) - { - using ColumnType = typename std::remove_reference<decltype(std::get<N>(std::declval<std::tuple<T...>>()))>::type; - out += ColumnType::name; - if (N != sizeof...(T) - 1) - out += ","; - add_column_name<N + 1, T...>(out); - } + using ColumnType = typename std::remove_reference<decltype(std::get<N>(std::declval<std::tuple<T...>>()))>::type; + out += ColumnType::name; + if (N != sizeof...(T) - 1) + out += ","; + add_column_name<N+1, T...>(out); } } |