GCC Code Coverage Report
Directory: . Exec Total Coverage
File: deps/install/include/cryptominisat5/solvertypesmini.h Lines: 6 15 40.0 %
Date: 2021-03-23 Branches: 0 0 0.0 %

Line Exec Source
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/******************************************
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Copyright (c) 2016, Mate Soos
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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***********************************************/
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#ifndef __SOLVERTYPESMINI_H__
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#define __SOLVERTYPESMINI_H__
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#include <cstdint>
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#include <iostream>
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#include <cassert>
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#include <vector>
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namespace CMSat {
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constexpr uint32_t var_Undef(0xffffffffU >> 4);
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class TooManyVarsError {};
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class TooLongClauseError {};
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class Lit
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{
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    uint32_t x;
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    constexpr explicit Lit(uint32_t i) : x(i) { }
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public:
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    constexpr Lit() : x(var_Undef<<1) {}   // (lit_Undef)
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    constexpr explicit Lit(uint32_t var, bool is_inverted) :
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        x(var + var + is_inverted)
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    {}
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    constexpr const uint32_t& toInt() const { // Guarantees small, positive integers suitable for array indexing.
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        return x;
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    }
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    constexpr Lit  operator~() const {
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        return Lit(x ^ 1);
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    }
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    constexpr Lit  operator^(const bool b) const {
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        return Lit(x ^ (uint32_t)b);
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    }
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    Lit& operator^=(const bool b) {
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        x ^= (uint32_t)b;
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        return *this;
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    }
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    constexpr bool sign() const {
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        return x & 1;
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    }
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    constexpr uint32_t  var() const {
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        return x >> 1;
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    }
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    constexpr Lit  unsign() const {
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        return Lit(x & ~1U);
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    }
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    constexpr bool operator==(const Lit& p) const {
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        return x == p.x;
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    }
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    constexpr bool operator!= (const Lit& p) const {
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        return x != p.x;
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    }
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    /**
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    @brief ONLY to be used for ordering such as: a, b, ~b, etc.
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    */
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    constexpr bool operator <  (const Lit& p) const {
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        return x < p.x;     // '<' guarantees that p, ~p are adjacent in the ordering.
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    }
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    constexpr bool operator >  (const Lit& p) const {
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        return x > p.x;
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    }
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    constexpr bool operator >=  (const Lit& p) const {
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        return x >= p.x;
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    }
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    constexpr static Lit toLit(uint32_t data)
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    {
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        return Lit(data);
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    }
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};
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static const Lit lit_Undef(var_Undef, false);  // Useful special constants.
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static const Lit lit_Error(var_Undef, true );  //
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inline std::ostream& operator<<(std::ostream& os, const Lit lit)
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{
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    if (lit == lit_Undef) {
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        os << "lit_Undef";
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    } else {
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        os << (lit.sign() ? "-" : "") << (lit.var() + 1);
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    }
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    return os;
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}
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inline std::ostream& operator<<(std::ostream& co, const std::vector<Lit>& lits)
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{
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    for (uint32_t i = 0; i < lits.size(); i++) {
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        co << lits[i];
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        if (i != lits.size()-1)
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            co << " ";
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    }
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    return co;
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}
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class lbool {
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    uint8_t value;
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public:
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    constexpr explicit lbool(uint8_t v) : value(v) { }
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    constexpr lbool()       : value(0) { }
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    constexpr explicit lbool(bool x) : value(!x) { }
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    constexpr bool  operator == (lbool b) const {
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        return ((b.value & 2) & (value & 2)) | (!(b.value & 2) & (value == b.value));
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    }
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    constexpr bool  operator != (lbool b) const {
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        return !(*this == b);
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    }
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    constexpr lbool operator ^  (bool  b) const {
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        return lbool((uint8_t)(value ^ (uint8_t)b));
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    }
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    lbool operator && (lbool b) const {
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        uint8_t sel = (value << 1) | (b.value << 3);
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        uint8_t v   = (0xF7F755F4 >> sel) & 3;
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        return lbool(v);
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    }
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    lbool operator || (lbool b) const {
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        uint8_t sel = (value << 1) | (b.value << 3);
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        uint8_t v   = (0xFCFCF400 >> sel) & 3;
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        return lbool(v);
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    }
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    constexpr uint8_t getValue() const { return value; }
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    friend lbool toLbool(uint32_t   v);
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    constexpr friend uint32_t   toInt  (lbool l);
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};
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constexpr lbool l_True = lbool((uint8_t)0);
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constexpr lbool l_False = lbool((uint8_t)1);
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constexpr lbool l_Undef = lbool((uint8_t)2);
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inline lbool toLbool(uint32_t v)
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{
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    lbool l;
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    l.value = v;
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    return l;
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}
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constexpr inline uint32_t toInt  (lbool l)
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{
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    return l.value;
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}
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inline lbool boolToLBool(const bool b)
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{
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    if (b) {
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        return l_True;
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    } else {
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        return l_False;
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    }
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}
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inline std::ostream& operator<<(std::ostream& cout, const lbool val)
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{
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    if (val == l_True) cout << "l_True";
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    if (val == l_False) cout << "l_False";
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    if (val == l_Undef) cout << "l_Undef";
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    return cout;
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}
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enum class rst_dat_type {norm, var, cl};
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}
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#endif //__SOLVERTYPESMINI_H__