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

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This commit is contained in:
Arash Partow
2014-12-04 07:51:26 +11:00
parent 8e713c557a
commit 910117c5a0
3 changed files with 384 additions and 75 deletions
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71
exprtk_test.cpp
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@ -2120,6 +2120,56 @@ inline bool run_test02()
}
}
{
std::string s0;
std::string s1;
const std::string expression_str =
" s0 := 'abc'; "
" s0 := (s1 := '0123456789'[2:7]); "
" s1 := 'xyz'; "
" s0 < s1; ";
exprtk::symbol_table<T> symbol_table;
symbol_table.add_stringvar("s0" ,s0);
symbol_table.add_stringvar("s1" ,s1);
exprtk::expression<T> expression;
expression.register_symbol_table(symbol_table);
{
exprtk::parser<T> parser;
if (!parser.compile(expression_str,expression))
{
printf("run_test02() - [2] Error: %s Expression: %s\n",
parser.error().c_str(),
expression_str.c_str());
return false;
}
}
if (T(0) == expression.value())
{
printf("run_test02() - Evaluation Error [2]: Expression: [%s]\tExpected: True\n",
expression_str.c_str());
return false;
}
else if ("234567" != s0)
{
printf("run_test02() - Evaluation Error [2]: Expression: [%s]\tInvalid value for s0\n",
expression_str.c_str());
return false;
}
else if ("xyz" != s1)
{
printf("run_test02() - Evaluation Error [2]: Expression: [%s]\tInvalid value for s1\n",
expression_str.c_str());
return false;
}
}
return true;
}
@ -3263,12 +3313,15 @@ inline bool run_test10()
expression_t expression;
expression.register_symbol_table(symbol_table);
std::string expression_string = "(e == '1234') and (sin(a) + c) / b";
std::string expression_string = "(E == '1234') and (sin(a) + C) / b";
std::deque<std::string> variable_list;
typedef exprtk::parser<T> parser_t;
typedef typename parser_t::cache_symbol_t cache_symbol_t;
std::deque<cache_symbol_t> variable_list;
{
exprtk::parser<T> parser;
parser_t parser;
parser.cache_symbols() = true;
@ -3284,11 +3337,13 @@ inline bool run_test10()
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");
std::deque<cache_symbol_t> expected_variable_list;
expected_variable_list.push_back(cache_symbol_t("a" ,parser_t::e_cs_variable));
expected_variable_list.push_back(cache_symbol_t("b" ,parser_t::e_cs_variable));
expected_variable_list.push_back(cache_symbol_t("c" ,parser_t::e_cs_variable));
expected_variable_list.push_back(cache_symbol_t("e" ,parser_t::e_cs_string ));
expected_variable_list.push_back(cache_symbol_t("sin",parser_t::e_cs_function));
bool result = (variable_list.size() == expected_variable_list.size()) &&
std::equal(variable_list.begin(),