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

package strings_test

// Derived from bytes/compare_test.go.
// Benchmarks omitted since the underlying implementation is identical.

import (
	"internal/testenv"
	. "strings"
	"testing"
	"unsafe"
)

var compareTests = []struct {
	a, b string
	i    int
}{
	{"", "", 0},
	{"a", "", 1},
	{"", "a", -1},

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

//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc

#include "textflag.h"

// System call support for AMD64 BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

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

//go:build (freebsd || netbsd || openbsd) && gc

#include "textflag.h"

// System call support for ARM BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-28
	B	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-40
	B	syscall·Syscall6(SB)

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

//go:build (darwin || freebsd || netbsd || openbsd) && gc

#include "textflag.h"

// System call support for RISCV64 BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-56
	JMP	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-80
	JMP	syscall·Syscall6(SB)

//go:build amd64 || arm || arm64 || ppc64le || ppc64 || riscv64 || s390x

package bytealg

//go:noescape
func Count(b []byte, c byte) int

//go:noescape
func CountString(s string, c byte) int

// A backup implementation to use by assembly.
func countGeneric(b []byte, c byte) int {
	n := 0
	for _, x := range b {
		if x == c {
			n++
		}
	}
	return n
}
func countGenericString(s string, c byte) int {
	n := 0

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

//go:build (freebsd || netbsd || openbsd) && gc

#include "textflag.h"

// System call support for 386 BSD

// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.

TEXT	·Syscall(SB),NOSPLIT,$0-28
	JMP	syscall·Syscall(SB)

TEXT	·Syscall6(SB),NOSPLIT,$0-40
	JMP	syscall·Syscall6(SB)

	restore(randState, randInc uint64)
}

// The functions in pcg implement a 32 bit PRNG with a 64 bit period: pcg xsh rr
// 64 32. See https://www.pcg-random.org/ for more information. This
// implementation is geared specifically towards the needs of fuzzing: Simple
// creation and use, no reproducibility, no concurrency safety, just the
// necessary methods, optimized for speed.

var globalInc atomic.Uint64 // PCG stream

// Round returns the nearest integer, rounding half away from zero.
//
// Special cases are:
//
//	Round(±0) = ±0
//	Round(±Inf) = ±Inf
//	Round(NaN) = NaN
func Round(x float64) float64 {
	// Round is a faster implementation of:
	//
	// func Round(x float64) float64 {
	//   t := Trunc(x)
	//   if Abs(x-t) >= 0.5 {
	//     return t + Copysign(1, x)
	//   }
	//   return t
	// }
	bits := Float64bits(x)

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

//go:build !windows && !plan9

package os

import (
	"syscall"
	"time"
)

// A fileStat is the implementation of FileInfo returned by Stat and Lstat.
type fileStat struct {
	name    string
	size    int64
	mode    FileMode
	modTime time.Time
	sys     syscall.Stat_t
}

// Copyright 2017 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.

// Package boring provides access to BoringCrypto implementation functions.
// Check the constant Enabled to find out whether BoringCrypto is available.
// If BoringCrypto is not available, the functions in this package all panic.
package boring

// Enabled reports whether BoringCrypto is available.