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Macros
-- Constrained template macros
-- Version macros
-- `OUTCOME_CO_TRY(var, expr)`
-- `OUTCOME_CO_TRYV(expr)/OUTCOME_CO_TRY(expr)`
-- `OUTCOME_CO_TRYV2(spec, expr)`
-- `OUTCOME_CO_TRYV2_FAILURE_LIKELY(spec, expr)`
-- `OUTCOME_CO_TRYV_FAILURE_LIKELY(expr)/OUTCOME_CO_TRY_FAILURE_LIKELY(expr)`
-- `OUTCOME_CO_TRYX(expr)`
-- `OUTCOME_CO_TRYX_FAILURE_LIKELY(expr)`
-- `OUTCOME_CO_TRY_FAILURE_LIKELY(var, expr)`
-- `OUTCOME_DISABLE_EXECINFO`
-- `OUTCOME_ENABLE_LEGACY_SUPPORT_FOR`
-- `OUTCOME_NODISCARD`
-- `OUTCOME_REQUIRES(...)`
-- `OUTCOME_SYMBOL_VISIBLE`
-- `OUTCOME_THREAD_LOCAL`
-- `OUTCOME_THROW_EXCEPTION(expr)`
-- `OUTCOME_TRY(var, expr)`
-- `OUTCOME_TRYV(expr)/OUTCOME_TRY(expr)`
-- `OUTCOME_TRYV2(spec, expr)`
-- `OUTCOME_TRYV2_FAILURE_LIKELY(spec, expr)`
-- `OUTCOME_TRYV_FAILURE_LIKELY(expr)/OUTCOME_TRY_FAILURE_LIKELY(expr)`
-- `OUTCOME_TRYX(expr)`
-- `OUTCOME_TRYX_FAILURE_LIKELY(expr)`
-- `OUTCOME_TRY_FAILURE_LIKELY(var, expr)`
-- `OUTCOME_USE_STD_IN_PLACE_TYPE`
-- `OUTCOME_USE_STD_IS_NOTHROW_SWAPPABLE`
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OUTCOME_USE_STD_IN_PLACE_TYPEHow to implement in_place_type_t<T>in_place_type<T>.
If set to 1, the <utility> header is included, and std::in_place_type_t<T>
is aliased into OUTCOME_V2_NAMESPACE::in_place_type_t<T> along with
std::in_place_type<T>.
If set to 0, a local emulation is used.
Overridable : Define before inclusion.
Default : If the current compiler implements C++ 17 or later, if unset
this macro is defaulted to 1, otherwise it is defaulted to 0.
Header : <outcome/config.hpp>