return opd
	}
	return arm64.SPOP_END
}

// IsARM64ADR reports whether the op (as defined by an arm64.A* constant) is
// one of the comparison instructions that require special handling.
func IsARM64ADR(op obj.As) bool {
	switch op {
	case arm64.AADR, arm64.AADRP:
		return true
	}
	return false
}

// IsARM64CMP reports whether the op (as defined by an arm64.A* constant) is

	return false
}

// IsMIPSCMP reports whether the op (as defined by an mips.A* constant) is
// one of the CMP instructions that require special handling.
func IsMIPSCMP(op obj.As) bool {
	switch op {
	case mips.ACMPEQF, mips.ACMPEQD, mips.ACMPGEF, mips.ACMPGED,
		mips.ACMPGTF, mips.ACMPGTD:
		return true
	}
	return false
}

// IsMIPSMUL reports whether the op (as defined by an mips.A* constant) is

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

its arguments, calls xxx, and translates the return value.

Translation of parameters and the return value follows the type
translation above except that arrays passed as parameters translate
explicitly in Go to pointers to arrays, as they do (implicitly) in C.

Garbage collection is the big problem.  It is fine for the Go world to
have pointers into the C world and to free those pointers when they

	strippedPathExpr   []*JSONPathElement
}

// AliasedExpression is an expression that can be optionally named
type AliasedExpression struct {
	Expression *Expression `parser:"@@"`
	As         string      `parser:"[ \"AS\" @Ident | \"AS\" @LitString ]"`
}

// Grammar for Expression
//
// Expression          → AndCondition ("OR" AndCondition)*
// AndCondition        → Condition ("AND" Condition)*

// Reader.Next advances to the next file in the archive (including the first),
// and then Reader can be treated as an io.Reader to access the file's data.
type Reader struct {
	r    io.Reader
	pad  int64      // Amount of padding (ignored) after current file entry
	curr fileReader // Reader for current file entry
	blk  block      // Buffer to use as temporary local storage

	// err is a persistent error.

	set[targetID] = struct{}{}
}

// Union - returns union with given set as new set.
func (set TargetIDSet) Union(sset TargetIDSet) TargetIDSet {
	nset := set.Clone()

	for k := range sset {
		nset.add(k)
	}

	return nset
}

// Difference - returns difference with given set as new set.
func (set TargetIDSet) Difference(sset TargetIDSet) TargetIDSet {
	nset := NewTargetIDSet()

// to activate delete only headers set delete as true
func setPutObjHeaders(w http.ResponseWriter, objInfo ObjectInfo, delete bool) {
	// We must not use the http.Header().Set method here because some (broken)
	// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
	// Therefore, we have to set the ETag directly as map entry.
	if objInfo.ETag != "" && !delete {

	case int64:
		return x, nil
	case string:
		// Parse as number, truncate floating point if
		// needed.
		// String might contain trimming spaces, which
		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(x))
		if !ok {
			return 0, errCastFailure("could not parse as int")
		}
		return res, nil
	case []byte:
		// Parse as number, truncate floating point if
		// needed.

func hasBadHost(host string) error {
	if globalIsCICD && strings.TrimSpace(host) == "" {
		// under CI/CD test setups ignore empty hosts as invalid hosts
		return nil
	}
	_, err := xnet.ParseHost(host)
	return err
}

// Check if the incoming path has bad path components,
// such as ".." and "."
func hasBadPathComponent(path string) bool {
	if len(path) > 4096 {
		// path cannot be greater than Linux PATH_MAX