config.hpp File Reference

Central feature-gate header for Commons' optional integrations. More...

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Detailed Description

Central feature-gate header for Commons' optional integrations.

Each optional integration is controlled by a COMMONS_WITH_* macro that resolves to 1 (enabled) or 0 (disabled). A macro predefined by the build system (CMake/Meson) or the consumer always wins; otherwise it is auto-detected via __has_include, so the base library carries no forced dependency.

Supported gates:

• COMMONS_WITH_NLOHMANN_JSON — nlohmann/json to_json/from_json hooks, enabled when <nlohmann/json.hpp> is on the include path.
• COMMONS_WITH_ULID — the ulid::Ulid representation for comms::Id, enabled when <ulid/ulid.h> is on the include path.