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

package math

// The original C code, the long comment, and the constants
// below are from FreeBSD's /usr/src/lib/msun/src/s_expm1.c
// and came with this notice. The go code is a simplified
// version of the original C.
//
// ====================================================
// Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.

// The underlying scanner elides all spaces except newline, so the input looks like a stream of
// Tokens; original spacing is lost but we don't need it.
type TokenReader interface {
	// Next returns the next token.
	Next() ScanToken
	// The following methods all refer to the most recent token returned by Next.
	// Text returns the original string representation of the token.
	Text() string
	// File reports the source file name of the token.

type ResponseController struct {
	rw ResponseWriter
}

// NewResponseController creates a [ResponseController] for a request.
//
// The ResponseWriter should be the original value passed to the [Handler.ServeHTTP] method,
// or have an Unwrap method returning the original ResponseWriter.
//
// If the ResponseWriter implements any of the following methods, the ResponseController
// will call them as appropriate:
//
//	Flush()

		t.Errorf("Replace(%v, 1, 3, %v, %v, %v, %v) = %v, want %v", copy, &z, &z, &z, &z, s, want)
	}

	if !Equal(original, copy) {
		t.Errorf("original slice has changed, got %v, want %v", original, copy)
	}

	if !Equal(mem, memcopy) {
		// Changing the original tail s[len(s):cap(s)] is unwanted
		t.Errorf("original backing memory has changed, got %v, want %v", mem, memcopy)
	}
}

	"cmd/internal/pkgpattern"

	"golang.org/x/mod/module"
)

// A query describes a command-line argument and the modules and/or packages
// to which that argument may resolve..
type query struct {
	// raw is the original argument, to be printed in error messages.
	raw string

	// rawVersion is the portion of raw corresponding to version, if any
	rawVersion string

	// pattern is the part of the argument before "@" (or the whole argument

// go1.21 and earlier are no longer supported by x/tools.

package versions

import "strings"

// A gover is a parsed Go gover: major[.Minor[.Patch]][kind[pre]]
// The numbers are the original decimal strings to avoid integer overflows
// and since there is very little actual math. (Probably overflow doesn't matter in practice,
// but at the time this code was written, there was an existing test that used

	if err != nil {
		t.Error(err)
	}
}

func testModSubThenAddIdentity(a *Nat, b *Nat) bool {
	m := maxModulus(uint(len(a.limbs)))
	original := new(Nat).set(a)
	a.Sub(b, m)
	a.Add(b, m)
	return a.Equal(original) == 1
}

func TestModSubThenAddIdentity(t *testing.T) {
	err := quick.Check(testModSubThenAddIdentity, &quick.Config{})
	if err != nil {
		t.Error(err)
	}
}

	// (to satisfy possible pointer methods) and continues to dereference
	// subsequent pointers as necessary.
	//
	// After the first round-trip, we set v back to the original value to
	// preserve the original RW flags contained in reflect.Value.
	v0 := v
	haveAddr := false

	// If v is a named type and is addressable,
	// start with its address, so that if the type has pointer methods,

	}

	// compute type set if necessary
	if ityp.tset == nil {
		// pos is used for tracing output; start with the type parameter position.
		pos := t.obj.pos
		// use the (original or possibly instantiated) type bound position if we have one
		if n := asNamed(bound); n != nil {
			pos = n.obj.pos
		}
		computeInterfaceTypeSet(t.check, pos, ityp)
	}

	return ityp
}

		// constant initialization expression, pos is the position of
		// the original expression, and not of the currently declared
		// constant identifier. Use the provided errpos instead.
		// TODO(gri) We may also want to augment the error message and
		// refer to the position (pos) in the original expression.
		if check.errpos != nil && check.errpos.Pos().IsValid() {
			assert(check.iota != nil)