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

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Arash Partow
2012-03-19 07:34:44 +11:00
parent ec5a2501d3
commit 177393076b
2 changed files with 426 additions and 43 deletions
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128
exprtk_test.cpp
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@ -833,8 +833,121 @@ inline bool run_test1()
return true;
}
template<typename T>
struct test_ab
{
test_ab(std::string e, const std::string& v0, const std::string& v1, const T& r)
: expr(e),
a(v0),
b(v1),
result(r)
{}
std::string expr;
std::string a;
std::string b;
T result;
};
template <typename T>
inline bool run_test2()
{
static const test_ab<T> test_list[] =
{
test_ab<T>("'aaa' == 'aaa'" ,"","",T(1.0)),
test_ab<T>("'aaa' < 'bbb'" ,"","",T(1.0)),
test_ab<T>("'aaa' <= 'bbb'" ,"","",T(1.0)),
test_ab<T>("'bbb' > 'aaa'" ,"","",T(1.0)),
test_ab<T>("'bbb' >= 'aaa'" ,"","",T(1.0)),
test_ab<T>("'aaa' != 'aaa'" ,"","",T(0.0)),
test_ab<T>("'aaa' != 'bbb'" ,"","",T(1.0)),
test_ab<T>("'aaa' + '123' == 'aaa123'" ,"","",T(1.0)),
test_ab<T>("'aaa123' == 'aaa' + '123'" ,"","",T(1.0)),
test_ab<T>("('aaa' + '123') == 'aaa123'" ,"","",T(1.0)),
test_ab<T>("'aaa123' == ('aaa' + '123')" ,"","",T(1.0)),
test_ab<T>("'aaa' in 'aaa123'" ,"","",T(1.0)),
test_ab<T>("'123' in 'aaa123'" ,"","",T(1.0)),
test_ab<T>("'a123b' like '*123*'" ,"","",T(1.0)),
test_ab<T>("'a123b' like '*123?'" ,"","",T(1.0)),
test_ab<T>("'1XYZ2' ilike '*xyz*'" ,"","",T(1.0)),
test_ab<T>("'1XYZ2' ilike '*xyz?'" ,"","",T(1.0)),
test_ab<T>("a == b" ,"aaa","aaa",T(1.0)),
test_ab<T>("a != b" ,"aaa","bbb",T(1.0)),
test_ab<T>("a < b" ,"aaa","bbb",T(1.0)),
test_ab<T>("a <= b" ,"aaa","bbb",T(1.0)),
test_ab<T>("b > a" ,"aaa","bbb",T(1.0)),
test_ab<T>("b >= a" ,"aaa","bbb",T(1.0)),
test_ab<T>("a in b" ,"aaa","aaa123",T(1.0)),
test_ab<T>("a in b" ,"123","aaa123",T(1.0)),
test_ab<T>("a == 'aaa'" ,"aaa","aaa",T(1.0)),
test_ab<T>("'aaa' == a" ,"aaa","aaa",T(1.0)),
test_ab<T>("a != 'bbb'" ,"aaa","bbb",T(1.0)),
test_ab<T>("'bbb' != a" ,"aaa","bbb",T(1.0)),
test_ab<T>("a < 'bbb'" ,"aaa","bbb",T(1.0)),
test_ab<T>("a <= 'bbb'" ,"aaa","bbb",T(1.0)),
test_ab<T>("'bbb' > a" ,"aaa","bbb",T(1.0)),
test_ab<T>("'bbb' >= a" ,"aaa","bbb",T(1.0)),
test_ab<T>("a in 'aaa123'" ,"aaa","aaa123",T(1.0)),
test_ab<T>("a in 'aaa123'" ,"123","aaa123",T(1.0)),
test_ab<T>("'aaa' in b" ,"aaa","aaa123",T(1.0)),
test_ab<T>("'123' in b" ,"aaa","aaa123",T(1.0)),
test_ab<T>("(a < b) or (a == b)" ,"aaa","bbb",T(1.0)),
test_ab<T>("(a == b) or (a < b)" ,"aaa","bbb",T(1.0)),
test_ab<T>("(b > a) or (b == a)" ,"aaa","bbb",T(1.0)),
test_ab<T>("(b == a) or (b > a)" ,"aaa","bbb",T(1.0)),
test_ab<T>("(a < b) and (b > a)" ,"aaa","bbb",T(1.0)),
test_ab<T>("a like '*123*'" ,"a123b","",T(1.0)),
test_ab<T>("a like '*123?'" ,"a123b","",T(1.0)),
test_ab<T>("'a123b' like b" ,"a123b","*123*",T(1.0)),
test_ab<T>("'a123b' like b" ,"a123b","*123?",T(1.0)),
test_ab<T>("a ilike '*xyz*'" ,"1XYZ2","",T(1.0)),
test_ab<T>("a ilike '*xyz?'" ,"1XYZ2","",T(1.0)),
test_ab<T>("'1XYZ2' ilike b" ,"","*xyz*",T(1.0)),
test_ab<T>("'1XYZ2' ilike b" ,"","*xyz?",T(1.0)),
};
static const std::size_t test_list_size = sizeof(test_list) / sizeof(test_ab<T>);
const std::size_t rounds = 10000;
for (std::size_t r = 0; r < rounds; ++r)
{
for (std::size_t i = 0; i < test_list_size; ++i)
{
test_ab<T>& test = const_cast<test_ab<T>&>(test_list[i]);
exprtk::symbol_table<T> symbol_table;
symbol_table.add_stringvar("a",test.a);
symbol_table.add_stringvar("b",test.b);
exprtk::expression<T> expression;
expression.register_symbol_table(symbol_table);
{
exprtk::parser<T> parser;
if (!parser.compile(test.expr,expression))
{
std::cout << "test_expression() - Error: " << parser.error() << "\tExpression: " << test.expr << std::endl;
return false;
}
}
T result = expression.value();
if (not_equal<T>(result,test.result))
{
printf("Computation Error: Expression: [%s]\tExpected: %19.15f\tResult: %19.15f\n",
test.expr.c_str(),
test.result,
result);
return false;
}
}
}
return true;
}
template <typename T>
inline bool run_test3()
{
std::string expression_string = "a+b+c+d+e+f+g+h+i+j+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z+"
"A+B+C+D+E+F+G+H+I+J+K+L+M+N+O+P+Q+R+S+T+U+V+W+X+Y+Z+"
@ -911,7 +1024,7 @@ inline T clamp(const T& l, const T& v, const T& u)
}
template <typename T>
inline bool run_test3()
inline bool run_test4()
{
std::string expression_string = "clamp(-1.0,sin(2 * pi * x) + cos(y / 2 * pi),+1.0)";
@ -961,7 +1074,7 @@ inline bool run_test3()
}
template <typename T>
inline bool run_test4()
inline bool run_test5()
{
typedef exprtk::expression<T> expression_t;
std::string expression_string = "clamp(-1.0,sin(2 * pi * x_var123) + cos(y_var123 / 2 * pi),+1.0)";
@ -1021,7 +1134,7 @@ inline bool run_test4()
}
template <typename T>
inline bool run_test5()
inline bool run_test6()
{
typedef exprtk::expression<T> expression_t;
std::string expression_string = "sqrt(1 - (x^2))";
@ -1063,7 +1176,7 @@ inline bool run_test5()
}
template <typename T>
inline bool run_test6()
inline bool run_test7()
{
typedef exprtk::expression<T> expression_t;
std::string expression_string = "sin(2x+1/3)";
@ -1108,7 +1221,7 @@ inline bool run_test6()
}
template <typename T>
inline bool run_test7()
inline bool run_test8()
{
static const std::string expr_str[] =
@ -1240,7 +1353,7 @@ struct myfunc : public exprtk::ifunction<T>
};
template <typename T>
inline bool run_test8()
inline bool run_test9()
{
static const std::size_t rounds = 100000;
for (std::size_t i = 0; i < rounds; ++i)
@ -1322,7 +1435,8 @@ int main()
run_test5<double>() &&
run_test6<double>() &&
run_test7<double>() &&
run_test8<double>()
run_test8<double>() &&
run_test9<double>()
)
? 0 : 1;
}