//
// The table's lower portion shows specialized features of each format,
// such as supported string encodings, support for sub-second timestamps,
// or support for sparse files.
//
// The Writer currently provides no support for sparse files.
type Format int

// Constants to identify various tar formats.
const (
	// Deliberately hide the meaning of constants from public API.

		did := did1
		cgo := &cgo1
		if strings.Contains(pt.support, "//export") {
			did = did2
			cgo = &cgo2
		}
		for _, imp := range pt.imports {
			if !did[imp] {
				did[imp] = true
				fmt.Fprintf(cgo, "import %q\n", imp)
			}
		}
	}

	// Func support and bodies.
	for _, pt := range ptrTests {
		cgo := &cgo1
		if strings.Contains(pt.support, "//export") {
			cgo = &cgo2
		}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test that -static works when not using cgo.  This test is in
// misc/cgo to take advantage of the testing framework support for
// when -static is expected to work.

package nocgo

func NoCgo() int {
	c := make(chan int)

	// The test is run with external linking, which means that

		after consulting $GOROOT/pkg/$GOOS_$GOARCH.
	-S
		Print assembly and machine code.
	-V
		Print assembler version and exit.
	-debug
		Dump instructions as they are parsed.
	-dynlink
		Support references to Go symbols defined in other shared libraries.
	-e
		No limit on number of errors reported.
	-gensymabis
		Write symbol ABI information to output file. Don't assemble.
	-o file

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// js and wasip1 do not support inter-process file locking.
//
//go:build !js && !wasip1

package lockedfile_test

import (
	"bytes"
	"encoding/binary"
	"math/rand"
	"path/filepath"
	"testing"
	"time"

	"cmd/go/internal/lockedfile"
)

// a and b, where the absolute value is determined by the Abs method.
func AbsDifference[T NumericAbs[T]](a, b T) T {
	d := a - b
	return d.Abs()
}

// OrderedNumeric is a type bound that matches numeric types that support the < operator.
type OrderedNumeric interface {
	~int | ~int8 | ~int16 | ~int32 | ~int64 |
		uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr |
		float32 | ~float64
}

	}

	fi, err := os.Open(binFile)
	if err != nil {
		t.Fatalf("failed to open built file: %v", err)
	}
	defer fi.Close()

	elfFile, err := elf.NewFile(fi)
	if err != nil {
		t.Skip("The system may not support ELF, skipped.")
	}

	section := elfFile.Section(".dynsym")
	if section == nil {
		t.Fatal("no dynsym")
	}

	symbols, err := elfFile.DynamicSymbols()
	if err != nil {

// because the internal package can't be used here.
func libFuzzerSupported(goos, goarch string) bool {
	switch goarch {
	case "amd64", "arm64":
		// TODO(#14565): support more architectures.
		switch goos {
		case "darwin", "freebsd", "linux", "windows":
			return true
		default:
			return false
		}
	default:
		return false
	}

		t.Skipf("swig not in PATH: %s", err)
	}

	// Check that swig was installed with Go support by checking
	// that a go directory exists inside the swiglib directory.
	// See https://golang.org/issue/23469.
	output, err := exec.Command(swig, "-go", "-swiglib").Output()
	if err != nil {
		t.Skip("swig is missing Go support")
	}
	swigDir := strings.TrimSpace(string(output))

	TrimPath   = flag.String("trimpath", "", "remove prefix from recorded source file paths")
	Shared     = flag.Bool("shared", false, "generate code that can be linked into a shared library")
	Dynlink    = flag.Bool("dynlink", false, "support references to Go symbols defined in other shared libraries")
	Linkshared = flag.Bool("linkshared", false, "generate code that will be linked against Go shared libraries")