IoManip.cc

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/*
 * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#include "squid.h"
#include "base/IoManip.h"
#include "debug/Stream.h"
 
#include <algorithm>
 
void
PrintHex(std::ostream &os, const char * const data, const size_t n)
{
    if (!n)
        return;
    assert(data);
 
    const auto savedFill = os.fill('0');
    const auto savedFlags = os.flags(); // std::ios_base::fmtflags
    os << std::hex;
    std::for_each(data, data + n,
    [&os](const char &c) { os << std::setw(2) << static_cast<uint8_t>(c); });
    os.flags(savedFlags);
    os.fill(savedFill);
}