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/*
* Copyright (c) 2015, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/** \file
* \brief Data types used to represent depth quantities.
*/
#include "depth.h"
#include "ue2common.h"
#include <algorithm> // std::min, std::max
namespace ue2 {
DepthMinMax unionDepthMinMax(const DepthMinMax &a, const DepthMinMax &b) {
DepthMinMax rv;
if (a.min.is_unreachable()) {
rv.min = b.min;
} else if (b.min.is_unreachable()) {
rv.min = a.min;
} else {
rv.min = std::min(a.min, b.min);
}
if (a.max.is_infinite() || b.max.is_infinite()) {
rv.max = depth::infinity();
} else if (a.max.is_unreachable()) {
rv.max = b.max;
} else if (b.max.is_unreachable()) {
rv.max = a.max;
} else {
rv.max = std::max(a.max, b.max);
}
return rv;
}
} // namespace ue2
#ifdef DUMP_SUPPORT
#include <sstream>
#include <string>
namespace ue2 {
std::string depth::str() const {
if (is_unreachable()) {
return "unr";
} else if (is_infinite()) {
return "inf";
}
std::ostringstream oss;
oss << val;
return oss.str();
}
std::string DepthMinMax::str() const {
std::ostringstream oss;
oss << "[" << min.str() << "," << max.str() << "]";
return oss.str();
}
} // namespace ue2
#endif // DUMP_SUPPORT
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