Source File
	executable_darwin.go

Belonging Package
	os

package os

import "errors"

var executablePath string // set by ../runtime/os_darwin.go

var initCwd, initCwdErr = Getwd()

func executable() (string, error) {
	ep := executablePath
	if len(ep) == 0 {
		return ep, errors.New("cannot find executable path")
	}
	if ep[0] != '/' {
		if initCwdErr != nil {
			return ep, initCwdErr
		}

			ep = ep[2:]
		}
		ep = initCwd + "/" + ep
	}
	return ep, nil

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