Function StripPhase

src/CoolProp.cpp:532–574

}

bool StripPhase(std::string& Name, shared_ptr<AbstractState>& State)
// Parses an imposed phase out of the Input Name string using the "|" delimiter
{
    std::vector<std::string> strVec = strsplit(Name, '|');  // Split input key string in to vector containing input key [0] and phase string [1]
    if (strVec.size() > 1) {                                // If there is a phase string (contains "|" character)
        // Check for invalid backends for setting phase in PropsSI
        const std::string strBackend = State->backend_name();
        if (strBackend == get_backend_string(INCOMP_BACKEND))
            throw ValueError("Cannot set phase on Incompressible Fluid; always liquid phase");  // incompressible fluids are always "liquid".
        if (strBackend == get_backend_string(IF97_BACKEND))
            throw ValueError("Can't set phase on IF97 Backend");  // IF97 has to calculate it's own phase region
        if (strBackend == get_backend_string(TTSE_BACKEND))
            throw ValueError("Can't set phase on TTSE Backend in PropsSI");  // Shouldn't be calling from High-Level anyway
        if (strBackend == get_backend_string(BICUBIC_BACKEND))
            throw ValueError("Can't set phase on BICUBIC Backend in PropsSI");  // Shouldn't be calling from High-Level anyway
        if (strBackend == get_backend_string(VTPR_BACKEND))
            throw ValueError("Can't set phase on VTPR Backend in PropsSI");  // VTPR has no phase functions to call

        phases imposed = iphase_not_imposed;  // Initialize imposed phase
        if (strVec.size() > 2)                // If there's more than on phase separator, throw error
        {
            throw ValueError(format("Invalid phase format: \"%s\"", Name));
        }
        // Handle prefixes of iphase_, phase_, or <none>
        std::basic_string<char>::iterator str_Iter;
        std::string strPhase = strVec[1];  //    Create a temp string so we can modify the prefix
        if (strPhase.find("iphase_") != strPhase.npos) {
            str_Iter = strPhase.erase(strPhase.begin());
        }  // Change "iphase_" to "phase_"
        if (strPhase.find("phase_") == strPhase.npos) {
            strPhase.insert(0, "phase_");
        }  // Prefix with "phase_" if missing
        // See if phase is a valid phase string, updating imposed while we're at it...
        if (!is_valid_phase(strPhase, imposed)) {
            throw ValueError(format("Phase string \"%s\" is not a valid phase", strVec[1]));  // throw error with original string if not valid
        }
        // Parsed phase string was valid
        Name = strVec[0];               //     Update input name to just the key string part
        State->specify_phase(imposed);  //     Update the specified phase on the backend State
        return true;                    //     Return true because a valid phase string was found
    }
    return false;  // Return false if there was no phase string on this key.
}

void _PropsSImulti(const std::vector<std::string>& Outputs, const std::string& Name1, const std::vector<double>& Prop1, const std::string& Name2,
                   const std::vector<double>& Prop2, const std::string& backend, const std::vector<std::string>& fluids,