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Expose saturation derivatives through PropsSI; closes #712

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Ian Bell
2015-07-07 22:37:36 -06:00
parent 11417d3589
commit b6b73192f9
3 changed files with 46 additions and 1 deletions
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32
src/DataStructures.cpp
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@@ -253,6 +253,38 @@ bool is_valid_first_derivative(const std::string &name, parameters &iOf, paramet
}
}
bool is_valid_first_saturation_derivative(const std::string &name, parameters &iOf, parameters &iWrt)
{
if (get_debug_level() > 5){ std::cout << format("is_valid_first_saturation_derivative(%s)", name.c_str()); }
// There should be exactly one /
// There should be exactly one |
// Suppose we start with "d(P)/d(T)|sigma"
std::vector<std::string> split_at_bar = strsplit(name, '|'); // "d(P)/d(T)" and "sigma"
if (split_at_bar.size() != 2){ return false; }
std::vector<std::string> split_at_slash = strsplit(split_at_bar[0], '/'); // "d(P)" and "d(T)"
if (split_at_slash.size() != 2){ return false; }
std::size_t i0 = split_at_slash[0].find("(");
std::size_t i1 = split_at_slash[0].find(")", i0);
if (!((i0 > 0) && (i0 != std::string::npos) && (i1 > (i0+1)) && (i1 != std::string::npos))){ return false; }
std::string num = split_at_slash[0].substr(i0+1, i1-i0-1);
i0 = split_at_slash[1].find("(");
i1 = split_at_slash[1].find(")", i0);
if (!((i0 > 0) && (i0 != std::string::npos) && (i1 > (i0+1)) && (i1 != std::string::npos))){ return false; }
std::string den = split_at_slash[1].substr(i0+1, i1-i0-1);
parameters Of, Wrt, Constant;
if (is_valid_parameter(num, Of) && is_valid_parameter(den, Wrt) && upper(split_at_bar[1]) == "SIGMA"){
iOf = Of; iWrt = Wrt; return true;
}
else{
return false;
}
}
bool is_valid_second_derivative(const std::string &name, parameters &iOf1, parameters &iWrt1, parameters &iConstant1, parameters &iWrt2, parameters &iConstant2)
{
if (get_debug_level() > 5){std::cout << format("is_valid_second_derivative(%s)",name.c_str());}