bits >>= 8
		}

		// Process one instruction.
		inst := uintptr(*p)
		p = add1(p)
		n := inst & 0x7F
		if inst&0x80 == 0 {
			// Literal bits; n == 0 means end of program.
			if n == 0 {
				// Program is over.
				break Run
			}
			nbyte := n / 8
			for i := uintptr(0); i < nbyte; i++ {
				bits |= uintptr(*p) << nbits
				p = add1(p)
				*dst = uint8(bits)

	// for use with SupportsCertificate.
	config *Config

	// ctx is the context of the handshake that is in progress.
	ctx context.Context
}

// Context returns the context of the handshake that is in progress.
// This context is a child of the context passed to HandshakeContext,
// if any, and is canceled when the handshake concludes.

// defined at http://codesourcery.com/cxx-abi/ and the Rust ABI
// defined at
// https://rust-lang.github.io/rfcs/2603-rust-symbol-name-mangling-v0.html
//
// Most programs will want to call Filter or ToString.
package demangle

import (
	"errors"
	"fmt"
	"strings"
)

// ErrNotMangledName is returned by CheckedDemangle if the string does

package time

import (
	"errors"
	_ "unsafe" // for go:linkname
)

// A Time represents an instant in time with nanosecond precision.
//
// Programs using times should typically store and pass them as values,
// not pointers. That is, time variables and struct fields should be of
// type [time.Time], not *time.Time.
//

		}
	}

	// Test that internal linking of standard packages does not
	// require libgcc. This ensures that we can install a Go
	// release on a system that does not have a C compiler
	// installed and still build Go programs (that don't use cgo).
	for _, pkg := range cgoPackages {
		if !t.internalLink() {
			break
		}

		// ARM libgcc may be Thumb, which internal linking does not support.
		if goarch == "arm" {
			break

	// Error recovery
	// (used to limit the number of calls to parser.advance
	// w/o making scanning progress - avoids potential endless
	// loops across multiple parser functions during error recovery)
	syncPos token.Pos // last synchronization position
	syncCnt int       // number of parser.advance calls without progress

	// Non-syntactic parser control
	exprLev int  // < 0: in control clause, >= 0: in expression

			// those users even more, because they think "sure ~ exists!".
			// The go command diagnoses this situation and prints a
			// useful error.
			// On Windows, ~ is used in short names, such as c:\progra~1
			// for c:\program files.
			continue
		}
		all = append(all, p)
	}
	return all
}

// SrcDirs returns a list of package source root directories.

			// This avoids any time the go command would
			// spend checking whether, for example, the installed
			// package runtime is up to date.
			// Because we run lots of trivial test programs,
			// the time adds up.
			pkg := filepath.Join(tempDir, "pkg.a")
			if _, err := runcmd(goTool, "tool", "compile", "-p=main", "-importcfg="+stdlibImportcfgFile(), "-o", pkg, t.goFileName()); err != nil {
				return err

		if c < utf8.RuneSelf && !isalnum(c) {
			// Escaped non-word characters are always themselves.
			// PCRE is not quite so rigorous: it accepts things like
			// \q, but we don't. We once rejected \_, but too many
			// programs and people insist on using it, so allow \_.
			return c, t, nil
		}

	// Octal escapes.
	case '1', '2', '3', '4', '5', '6', '7':
		// Single non-zero digit is a backreference; not supported

				p = uintptr(i)<<40 | uintptrMask&(0x0040<<32)
			case GOOS == "aix":
				if i == 0 {
					// We don't use addresses directly after 0x0A00000000000000
					// to avoid collisions with others mmaps done by non-go programs.
					continue
				}
				p = uintptr(i)<<40 | uintptrMask&(0xa0<<52)
			default:
				p = uintptr(i)<<40 | uintptrMask&(0x00c0<<32)
			}
			// Switch to generating hints for user arenas if we've gone