libpqxx
The C++ client library for PostgreSQL
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Static Public Member Functions | |
static constexpr bool | is_null (std::optional< T > const &v) noexcept |
static constexpr std::optional< T > | null () |
Static Public Attributes | |
static constexpr bool | has_null = true |
static constexpr bool | always_null = nullness<T>::always_null |
Technically, you could have an optional of an always-null type. |