//go:cgo_dynamic_linker "/lib64/ld-linux-x86-64.so.2"
	//go:cgo_import_dynamic puts puts#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic __libc_start_main __libc_start_main#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic stdout stdout#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic fflush fflush#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic _ _ "libpthread.so.0"
	//go:cgo_import_dynamic _ _ "libc.so.6"

the CPU cost of the garbage collector is incurred less frequently.

This functionality in this package is mostly captured in the Arena type.
Arenas allocate large chunks of memory for Go values, so they're likely to
be inefficient for allocating only small amounts of small Go values. They're
best used in bulk, on the order of MiB of memory allocated on each use.

	}

	attempts := 1000
	threads := 4

	// Restrict the number of attempts based on RLIMIT_NPROC.
	// Tediously, RLIMIT_NPROC was left out of the syscall package,
	// probably because it is not in POSIX.1, so we define it here.
	// It is not defined on Solaris.
	var nproc int
	setNproc := true
	switch runtime.GOOS {
	default:
		setNproc = false
	case "aix":
		nproc = 9
	case "linux":
		nproc = 6

	// Two different parses: once with comments, once without.
	// The printer is not good enough at printing comments in the
	// right place when we start editing the AST behind its back,
	// so we use ast1 to look for the doc comments on import "C"
	// and on exported functions, and we use ast2 for translating
	// and reprinting.
	// In cgo mode, we ignore ast2 and just apply edits directly

pkg syscall (netbsd-arm64), const SO_SNDLOWAT = 4099
pkg syscall (netbsd-arm64), const SO_SNDLOWAT ideal-int
pkg syscall (netbsd-arm64), const SO_SNDTIMEO = 4107
pkg syscall (netbsd-arm64), const SO_SNDTIMEO ideal-int
pkg syscall (netbsd-arm64), const SO_TIMESTAMP = 8192
pkg syscall (netbsd-arm64), const SO_TIMESTAMP ideal-int
pkg syscall (netbsd-arm64), const SO_TYPE = 4104

pkg syscall (freebsd-386), const SOCK_CLOEXEC ideal-int
pkg syscall (freebsd-386), const SOCK_NONBLOCK = 536870912
pkg syscall (freebsd-386), const SOCK_NONBLOCK ideal-int
pkg syscall (freebsd-386), const SO_VENDOR = 2147483648
pkg syscall (freebsd-386), const SO_VENDOR ideal-int
pkg syscall (freebsd-386), const SYS_ACCEPT4 = 541
pkg syscall (freebsd-386), const SYS_ACCEPT4 ideal-int
pkg syscall (freebsd-386), const SYS_BINDAT = 538

	var cap0 int
	for i := 0; i < 5<<10; i++ {
		b.Write(buf)
		b.Read(buf)
		if i == 0 {
			cap0 = b.Cap()
		}
	}
	cap1 := b.Cap()
	// (*Buffer).grow allows for 2x capacity slop before sliding,
	// so set our error threshold at 3x.
	if cap1 > cap0*3 {
		t.Errorf("buffer cap = %d; too big (grew from %d)", cap1, cap0)
	}
}

func BenchmarkWriteByte(b *testing.B) {
	const n = 4 << 10
	b.SetBytes(n)

language.
</p>

<h2 id="Source_code_representation">Source code representation</h2>

<p>
Source code is Unicode text encoded in
<a href="https://en.wikipedia.org/wiki/UTF-8">UTF-8</a>. The text is not
canonicalized, so a single accented code point is distinct from the
same character constructed from combining an accent and a letter;
those are treated as two code points.  For simplicity, this document

#include "../../../../../runtime/textflag.h"
// TODO: cover more instruction

TEXT foo(SB),DUPOK|NOSPLIT,$0
	JAL	1(PC)	//CALL 1(PC)	//00040054
	JAL	(R4)	//CALL (R4)	//8100004c
	// relocation in play so the assembled offset should be 0

				// We don't do UTF-8 detection for multi-byte runes due to
				// false-positives with other encodings (e.g., Shift-JIS).
				// Format says encoding is not UTF-8, so we trust it.
				NonUTF8:  true,
				Modified: time.Date(2017, 11, 6, 13, 9, 27, 0, timeZone(-8*time.Hour)),
			},
		},
	},
	{
		Name: "utf8-osx.zip",
		File: []ZipTestFile{
			{
				Name:    "世界",