/root/bitcoin/src/util/byte_units.h

Source (jump to first uncovered line)
// Copyright (c) 2025-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_UTIL_BYTE_UNITS_H
#define BITCOIN_UTIL_BYTE_UNITS_H

#include <util/overflow.h>

#include <stdexcept>

//! Overflow-safe conversion of MiB to bytes.
constexpr size_t operator""_MiB(unsigned long long mebibytes)
{
    auto bytes{CheckedLeftShift(mebibytes, 20)};
    if (!bytes || *bytes > std::numeric_limits<size_t>::max()) {
        throw std::overflow_error("MiB value too large for size_t byte conversion");
    }
    return *bytes;
}

#endif // BITCOIN_UTIL_BYTE_UNITS_H

Coverage Report

Created: 2025-02-21 14:37

Line	Count	Source (jump to first uncovered line)
1		// Copyright (c) 2025-present The Bitcoin Core developers
2		// Distributed under the MIT software license, see the accompanying
3		// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5		#ifndef BITCOIN_UTIL_BYTE_UNITS_H
6		#define BITCOIN_UTIL_BYTE_UNITS_H
7
8		#include <util/overflow.h>
9
10		#include <stdexcept>
11
12		//! Overflow-safe conversion of MiB to bytes.
13		constexpr size_t operator""_MiB(unsigned long long mebibytes)
14	0	{
15	0	auto bytes{CheckedLeftShift(mebibytes, 20)};
16	0	if (!bytes \|\| *bytes > std::numeric_limits<size_t>::max()) {
17	0	throw std::overflow_error("MiB value too large for size_t byte conversion");
18	0	}
19	0	return *bytes;
20	0	}
21
22		#endif // BITCOIN_UTIL_BYTE_UNITS_H