diff options
Diffstat (limited to 'libdbpp/selectcommandUtil.impl.h')
| -rw-r--r-- | libdbpp/selectcommandUtil.impl.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/libdbpp/selectcommandUtil.impl.h b/libdbpp/selectcommandUtil.impl.h index dfe6894..6446de0 100644 --- a/libdbpp/selectcommandUtil.impl.h +++ b/libdbpp/selectcommandUtil.impl.h @@ -6,20 +6,19 @@ /// @cond namespace DB { - template<typename Fields, typename Func, unsigned int field, typename ... Fn> - inline typename std::enable_if<field >= std::tuple_size<Fields>::value>::type - forEachField(DB::SelectCommand *, const Func & func, const Fn & ... args) - { - func(args...); - } - template<typename Fields, typename Func, unsigned int field, typename ... Fn, typename ... Args> - inline typename std::enable_if<field < std::tuple_size<Fields>::value>::type + inline void forEachField(DB::SelectCommand * sel, const Func & func, const Args & ... args) { - typename std::tuple_element<field, Fields>::type a; - (*sel)[field] >> a; - forEachField<Fields, Func, field + 1, Fn...>(sel, func, args..., a); + if constexpr (field >= std::tuple_size<Fields>::value) { + (void)sel; + func(args...); + } + else { + typename std::tuple_element<field, Fields>::type a; + (*sel)[field] >> a; + forEachField<Fields, Func, field + 1, Fn...>(sel, func, args..., a); + } } template<typename ... Fn, typename Func> |