errors | Package errors implements functions to manipulate errors. |
math/bits | Package bits implements bit counting and manipulation functions for the predeclared unsigned integer types. |
runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
sync/atomic | Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms. |
unsafe | Package unsafe contains operations that step around the type safety of Go programs. |