}

// An EnvVar is an environment variable Name=Value.
type EnvVar struct {
	Name    string
	Value   string
	Changed bool // effective Value differs from default
}

// OrigEnv is the original environment of the program at startup.
var OrigEnv []string

// CmdEnv is the new environment for running go tool commands.
// User binaries (during go test or go run) are run with OrigEnv,
// not CmdEnv.

	}

	// Read into buffer of that size.
	buf := make([]byte, n)
	if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
		return nil, err
	}

	// The actual call may return less than the original reported required
	// size so ensure we deal with that.
	return buf[:n], nil
}

func SysctlClockinfo(name string) (*Clockinfo, error) {
	mib, err := sysctlmib(name)
	if err != nil {
		return nil, err

		d := dump(re)
		if d != tt.Dump {
			t.Errorf("Parse(%#q).Dump() = %#q want %#q", tt.Regexp, d, tt.Dump)
			continue
		}

		s := re.String()
		if s != tt.Regexp {
			// If ToString didn't return the original regexp,
			// it must have found one with fewer parens.
			// Unfortunately we can't check the length here, because
			// ToString produces "\\{" for a literal brace,
			// but "{" is a shorter equivalent in some contexts.

// license that can be found in the LICENSE file.

package math

/*
	Floating-point logarithm of the Gamma function.
*/

// The original C code and the long comment below are
// from FreeBSD's /usr/src/lib/msun/src/e_lgamma_r.c and
// came with this notice. The go code is a simplified
// version of the original C.
//
// ====================================================
// Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
//

	the lock. But instead of the value corresponding to the amount of contention that call
	stack caused, it corresponds to the amount of time the caller of unlock had to wait in its
	original call to lock. A future release is expected to align those and remove this setting.

	invalidptr: invalidptr=1 (the default) causes the garbage collector and stack

	MOVD	R8, R15	// save the original function
	MOVD	R6, R17 // save the original arg list addr
	MOVD	$__tsan_go_ignore_sync_begin(SB), R8 // func addr to call
	MOVD    runtime·tls_g(SB), R10
	MOVD    0(R10), g
	MOVD    g_racectx(g), R3        // goroutine context
	BL	racecall<>(SB)
	MOVD	R15, R8	// restore the original function
	MOVD	R17, R6 // restore arg list addr

	}()

	lookupCtx, cancelLookup := context.WithCancel(context.Background())
	unblockLookup := make(chan struct{})

	// Set testHookLookupIP to start a new, concurrent call to LookupIPAddr
	// and cancel the original one, then block until the canceled call has returned
	// (ensuring that it has performed any synchronous cleanup).
	testHookLookupIP = func(
		ctx context.Context,

			Time:    &info.Time,
		}
	}
}

// mergeOrigin returns the union of data from two origins,
// returning either a new origin or one of its unmodified arguments.
// If the two origins conflict including if either is nil,
// mergeOrigin returns nil.
func mergeOrigin(m1, m2 *codehost.Origin) *codehost.Origin {
	if m1 == nil || m2 == nil {
		return nil
	}

	if m2.VCS != m1.VCS ||
		m2.URL != m1.URL ||

		// careful not to call any methods that would cause t to be expanded: doing
		// so would result in deadlock.
		//
		// So we call t.Origin().TypeParams() rather than t.TypeParams().
		orig := t.Origin()
		n := orig.TypeParams().Len()
		if n == 0 {
			return t // type is not parameterized
		}

		if t.TypeArgs().Len() != n {
			return Typ[Invalid] // error reported elsewhere

	// content actually set from the server, ContentLength is set to -1,
	// and the "Content-Length" and "Content-Encoding" fields are deleted
	// from the responseHeader. To get the original response from
	// the server, set Transport.DisableCompression to true.
	Uncompressed bool

	// Trailer maps trailer keys to values in the same
	// format as Header.
	//