fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
/*
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* Copyright (C) 2017-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include "range.hh"
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#include <seastar/core/print.hh>
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#include "seastarx.hh"
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using int_range = nonwrapping_range<int>;
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inline
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unsigned cardinality(const int_range& r) {
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assert(r.start());
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assert(r.end());
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return r.end()->value() - r.start()->value() + r.start()->is_inclusive() + r.end()->is_inclusive() - 1;
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}
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inline
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unsigned cardinality(const std::optional<int_range>& ropt) {
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return ropt ? cardinality(*ropt) : 0;
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}
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inline
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std::optional<int_range> intersection(const int_range& a, const int_range& b) {
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auto int_tri_cmp = [] (int x, int y) {
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return x <=> y;
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};
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return a.intersection(b, int_tri_cmp);
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}
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inline
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int_range make_int_range(int start_inclusive, int end_exclusive) {
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if (end_exclusive <= start_inclusive) {
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throw std::runtime_error(format("invalid range: [{:d}, {:d})", start_inclusive, end_exclusive));
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}
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return int_range({start_inclusive}, {end_exclusive - 1});
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}
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