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C++ Mathematical Expression Library (ExprTk) http://www.partow.net/programming/exprtk/index.html

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Arash Partow
2013-07-12 23:08:57 +10:00
parent 2a9a16fd66
commit 45a1a275dc
3 changed files with 229 additions and 81 deletions
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61
exprtk_test.cpp
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@ -1270,6 +1270,7 @@ inline bool run_test01()
test_xy<T>("0 * (sin (x) + sinh (y) + sqrt (x) + tan (y))",T(1.0),T(1.0),T(0.0)),
test_xy<T>("0 * (sec (x) + csc (y) + tanh (x) + cot (y))",T(1.0),T(1.0),T(0.0)),
test_xy<T>("0 * (erf (x) + erfc (y) + sgn (y) + frac (y))",T(1.0),T(1.0),T(0.0)),
test_xy<T>("0 * (log1p(x) + expm1(y) )",T(1.0),T(1.0),T(0.0)),
test_xy<T>("0 * (deg2grad(x) + grad2deg(y) + rad2deg(x) + deg2rad(y))",T(1.0),T(1.0),T(0.0)),
test_xy<T>("switch { case (x <= y) : (y - x); default: 1.12345; }",T(1.0),T(2.0),T(1.0)),
test_xy<T>("switch { case (x > y) : 0; case (x <= y) : (y - x); default: 1.12345; }",T(1.0),T(2.0),T(1.0)),
@ -1582,7 +1583,9 @@ inline bool run_test02()
test_ab<T>("{[('!@#$%^&*([{}])-=')]} != [{(')]}{[(*&^%$#@!')}]","","",T(1.0)),
test_ab<T>("'!@#$%^&*([{}])-=' == '!@#$%^&*([{}])-='","","",T(1.0)),
test_ab<T>("('!@#$%^&*([{}])-=') == ('!@#$%^&*([{}])-=')","","",T(1.0)),
test_ab<T>("{[('!@#$%^&*([{}])-=')]} == [{('!@#$%^&*([{}])-=')}]","","",T(1.0))
test_ab<T>("{[('!@#$%^&*([{}])-=')]} == [{('!@#$%^&*([{}])-=')}]","","",T(1.0)),
test_ab<T>("'1234\\\\abc\nxyz\r890\tqaz\\'567' == a","1234\\abc\nxyz\r890\tqaz'567","",T(1.0)),
test_ab<T>("a == '1234\\\\abc\nxyz\r890\tqaz\\'567'","1234\\abc\nxyz\r890\tqaz'567","",T(1.0))
};
static const std::size_t test_list_size = sizeof(test_list) / sizeof(test_ab<T>);
@ -2713,6 +2716,60 @@ inline bool run_test10()
}
}
{
T a = T(1);
T b = T(2);
T c = T(3);
T d = T(4);
std::string e = "string";
exprtk::symbol_table<T> symbol_table;
symbol_table.add_variable ("a",a);
symbol_table.add_variable ("b",b);
symbol_table.add_variable ("c",c);
symbol_table.add_variable ("d",d);
symbol_table.add_stringvar("e",e);
expression_t expression;
expression.register_symbol_table(symbol_table);
std::string expression_string = "(e == '1234') and (sin(a) + c) / b";
std::deque<std::string> variable_list;
{
exprtk::parser<T> parser;
parser.cache_symbols() = true;
if (!parser.compile(expression_string,expression))
{
printf("run_test10() - Error: %s Expression: %s\n",
parser.error().c_str(),
expression_string.c_str());
return false;
}
parser.expression_symbols(variable_list);
}
std::deque<std::string> expected_variable_list;
expected_variable_list.push_back("a");
expected_variable_list.push_back("b");
expected_variable_list.push_back("c");
expected_variable_list.push_back("e");
bool result = (variable_list.size() == expected_variable_list.size()) &&
std::equal(variable_list.begin(),
variable_list.end(),
expected_variable_list.begin());
if (!result)
{
printf("run_test10() - Failed variable list comparison.(5)\n");
return false;
}
}
return true;
}
@ -4187,7 +4244,7 @@ inline bool run_test20()
{
typedef exprtk::expression<T> expression_t;
for (std::size_t i = 0; i < 400; ++i)
for (std::size_t i = 0; i < 100; ++i)
{
exprtk::symbol_table<T> symbol_table;
symbol_table.add_constants();