w.buf = append(w.buf, b...)
	w.readFromBytes += len(b)
	return int64(len(b)), err
}

// Test that calling (*Writer).ReadFrom with a partially-filled buffer
// fills the buffer before switching over to ReadFrom.
func TestWriterReadFromWithBufferedData(t *testing.T) {
	const bufsize = 16

	input := createTestInput(64)
	rfw := &readFromWriter{}
	w := NewWriterSize(rfw, bufsize)

iteration values from 0 up to <code>len(a)-1</code> and does not index into the array
or slice itself. For a <code>nil</code> slice, the number of iterations is 0.
</li>

<li>
For a string value, the "range" clause iterates over the Unicode code points
in the string starting at byte index 0.  On successive iterations, the index value will be the
index of the first byte of successive UTF-8-encoded code points in the string,

// Package tar implements access to tar archives.
//
// Tape archives (tar) are a file format for storing a sequence of files that
// can be read and written in a streaming manner.
// This package aims to cover most variations of the format,
// including those produced by GNU and BSD tar tools.
package tar

import (
	"errors"
	"fmt"
	"internal/godebug"
	"io/fs"
	"math"
	"path"
	"reflect"
	"strconv"

	// sparse files, and other features.
	//
	// It is recommended that PAX be chosen over GNU unless the target
	// application can only parse GNU formatted archives.
	//
	// Reference:
	//	https://www.gnu.org/software/tar/manual/html_node/Standard.html
	FormatGNU

	// Schily's tar format, which is incompatible with USTAR.
	// This does not cover STAR extensions to the PAX format; these fall under
	// the PAX format.
	formatSTAR

	}
	// disable LTO so we get an object whose symbols we can read
	c = append(c, "-fno-lto")
	c = append(c, "-") //read input from standard input
	return c
}

// gccDebug runs gcc -gdwarf-2 over the C program stdin and
// returns the corresponding DWARF data and, if present, debug data block.
func (p *Package) gccDebug(stdin []byte, nnames int) (d *dwarf.Data, ints []int64, floats []float64, strs []string) {

// the old assembler's (5a's) grammar and hand-writing complete
// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $0

// ADD
//
//	LTYPE1 cond imsr ',' spreg ',' reg
//	{
//		outcode($1, $2, &$3, $5, &$7);
//	}
// Cover some operand space here too.
	ADD	$1, R2, R3
	ADD	R1<<R2, R3, R4
	ADD	R1>>R2, R3, R4
	ADD	R1@>R2, R3, R4

// large to fit in the [Scanner.Buffer]. When a scan stops, the reader may have
// advanced arbitrarily far past the last token. Programs that need more
// control over error handling or large tokens, or must run sequential scans
// on a reader, should use [bufio.Reader] instead.
type Scanner struct {
	r            io.Reader // The reader provided by the client.

pkg syscall (freebsd-arm64), const DLT_AOS = 222
pkg syscall (freebsd-arm64), const DLT_AOS ideal-int
pkg syscall (freebsd-arm64), const DLT_APPLE_IP_OVER_IEEE1394 = 138
pkg syscall (freebsd-arm64), const DLT_APPLE_IP_OVER_IEEE1394 ideal-int
pkg syscall (freebsd-arm64), const DLT_ARCNET = 7
pkg syscall (freebsd-arm64), const DLT_ARCNET ideal-int
pkg syscall (freebsd-arm64), const DLT_ARCNET_LINUX = 129

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

// This input was created by taking the instruction productions in
// the old assembler's (7a's) grammar and hand-writing complete
// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $-8

// arithmetic operations
	ADDW	$1, R2, R3
	ADDW	R1, R2, R3
	ADDW	R1, ZR, R3
	ADD	$1, R2, R3
	ADD	R1, R2, R3

pkg syscall (darwin-arm64), const CTL_NET = 4
pkg syscall (darwin-arm64), const CTL_NET ideal-int
pkg syscall (darwin-arm64), const DLT_APPLE_IP_OVER_IEEE1394 = 138
pkg syscall (darwin-arm64), const DLT_APPLE_IP_OVER_IEEE1394 ideal-int
pkg syscall (darwin-arm64), const DLT_ARCNET = 7
pkg syscall (darwin-arm64), const DLT_ARCNET ideal-int
pkg syscall (darwin-arm64), const DLT_ATM_CLIP = 19