70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
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// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2018, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include <algorithm> // max
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#include <cmath> // abs
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#include "Machine.hh"
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namespace sta {
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using std::max;
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using std::abs;
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bool
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fuzzyEqual(float v1,
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float v2)
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{
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return v1 == v2
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|| abs(v1 - v2) < 1E-6F * max(abs(v1), abs(v2));
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}
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bool
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fuzzyZero(float v)
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{
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return v == 0.0
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|| abs(v) < 1E-15F;
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}
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bool
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fuzzyLess(float v1,
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float v2)
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{
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return v1 < v2 && !fuzzyEqual(v1, v2);
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}
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bool
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fuzzyLessEqual(float v1,
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float v2)
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{
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return v1 < v2 || fuzzyEqual(v1, v2);
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}
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bool
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fuzzyGreater(float v1,
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float v2)
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{
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return v1 > v2 && !fuzzyEqual(v1, v2);
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}
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bool
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fuzzyGreaterEqual(float v1,
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float v2)
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{
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return v1 > v2 || fuzzyEqual(v1, v2);
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}
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} // namespace
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