| bufio | Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O. |
| cmd/compile/internal/base | |
| cmd/compile/internal/ir | |
| cmd/compile/internal/typecheck | |
| cmd/compile/internal/types | |
| cmd/internal/pgo | Package pgo contains the compiler-agnostic portions of PGO profile handling. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| maps | Package maps defines various functions useful with maps of any type. |
| os | Package os provides a platform-independent interface to operating system functionality. |