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| author | louiz’ <louiz@louiz.org> | 2018-03-16 01:11:47 +0100 |
|---|---|---|
| committer | louiz’ <louiz@louiz.org> | 2018-03-16 01:13:50 +0100 |
| commit | d62ca9f87906be6f046fe9d07afb8bfb69c166e3 (patch) | |
| tree | 6d2f5f9d60f938b05ddf47bb6b56e51bcd42472f /src/database/index.hpp | |
| parent | ba879a882e031d7b8503f78fe41d1210000c96ca (diff) | |
| download | biboumi-d62ca9f87906be6f046fe9d07afb8bfb69c166e3.tar.gz biboumi-d62ca9f87906be6f046fe9d07afb8bfb69c166e3.tar.bz2 biboumi-d62ca9f87906be6f046fe9d07afb8bfb69c166e3.tar.xz biboumi-d62ca9f87906be6f046fe9d07afb8bfb69c166e3.zip | |
Use if constexpr to make things a lot more readable
Diffstat (limited to 'src/database/index.hpp')
| -rw-r--r-- | src/database/index.hpp | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/src/database/index.hpp b/src/database/index.hpp index 30766ab..094a36a 100644 --- a/src/database/index.hpp +++ b/src/database/index.hpp @@ -8,19 +8,16 @@ namespace { template <std::size_t N=0, typename... T> -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) +void add_column_name(std::string& 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); + 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); + } } } |