[](https://godoc.org/github.com/go-stack/stack) [](https://goreportcard.com/report/go-stack/stack) [](https://travis-ci.org/go-stack/stack) [](https://coveralls.io/github/go-stack/stack?branch=master) # stack Package stack implements utilities to capture, manipulate, and format call stacks. It provides a simpler API than package runtime. The implementation takes care of the minutia and special cases of interpreting the program counter (pc) values returned by runtime.Callers. ## Versioning Package stack publishes releases via [semver](http://semver.org/) compatible Git tags prefixed with a single 'v'. The master branch always contains the latest release. The develop branch contains unreleased commits. ## Formatting Package stack's types implement fmt.Formatter, which provides a simple and flexible way to declaratively configure formatting when used with logging or error tracking packages. ```go func DoTheThing() { c := stack.Caller(0) log.Print(c) // "source.go:10" log.Printf("%+v", c) // "pkg/path/source.go:10" log.Printf("%n", c) // "DoTheThing" s := stack.Trace().TrimRuntime() log.Print(s) // "[source.go:15 caller.go:42 main.go:14]" } ``` See the docs for all of the supported formatting options.