/**
@defgroup standard_api Standard API
User-facing interfaces.

@defgroup c_library C library style utilities (GPU-adapted)
@ingroup standard_api
Wrappers mirroring portions of the C library with HIP/GPU semantics.

@defgroup c_memory Memory allocation functions
@ingroup c_library
Malloc/free style GPU allocation helpers.

@defgroup c_bytestring Byte and string manipulation
@ingroup c_library
Low-level raw memory / byte sequence utilities.

@defgroup threading Threading primitives
@ingroup standard_api
Thread objects, synchronization and waiting primitives adapted for HIP execution.

@defgroup condition_variable Condition variable primitives
@ingroup threading
Blocking/waiting mechanisms allowing one or more threads to wait
until they are notified. Includes standard semantics (`condition_variable_any`)
and a lightweight spinning variant (`spin_condition_variable`).

@defgroup mutex Mutex primitives
@ingroup threading
Mutual exclusion types preventing simultaneous access to shared data. Includes
a spinning mutex (`spin_mutex`) and RAII lock wrappers (`lock_guard`, `unique_lock`).

@defgroup thread Thread management primitives
@ingroup threading
Creation, identification and control of GPU threads.
*/