| errors | Package errors implements functions to manipulate errors. |
| internal/abi | |
| internal/bytealg | |
| internal/goarch | package goarch contains GOARCH-specific constants. |
| internal/itoa | |
| internal/unsafeheader | Package unsafeheader contains header declarations for the Go runtime's slice and string implementations. |
| iter | Package iter provides basic definitions and operations related to iterators over sequences. |
| math | Package math provides basic constants and mathematical functions. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| unicode | Package unicode provides data and functions to test some properties of Unicode code points. |
| unicode/utf8 | Package utf8 implements functions and constants to support text encoded in UTF-8. |
| unsafe | Package unsafe contains operations that step around the type safety of Go programs. |