exprtk: simplify test package (#25856)

recipes/exprtk/all/test_package/test_package.cpp

@@ -1,78 +1,9 @@
-/*
- **************************************************************
- *         C++ Mathematical Expression Toolkit Library        *
- *                                                            *
- * Exprtk Test Package                                        *
- * Author: Arash Partow (1999-2022)                           *
- * URL: https://www.partow.net/programming/exprtk/index.html  *
- *                                                            *
- * Copyright notice:                                          *
- * Free use of the Mathematical Expression Toolkit Library is *
- * permitted under the guidelines and in accordance with the  *
- * most current version of the MIT License.                   *
- * http://www.opensource.org/licenses/MIT                     *
- *                                                            *
- **************************************************************
-*/
-
-
-#include <cstdio>
-#include <string>
-
 #include <exprtk.hpp>
-
-
-template <typename T>
-void test_function()
-{
-   typedef exprtk::symbol_table<T>    symbol_table_t;
-   typedef exprtk::expression<T>      expression_t;
-   typedef exprtk::parser<T>          parser_t;
-   typedef exprtk::parser_error::type error_t;
-
-   symbol_table_t symbol_table;
-   expression_t   expression;
-   parser_t       parser;
-
-   T x = 1;
-   T y = 2;
-
-   const std::string expression_string = "x * y + 3";
-
-   symbol_table.add_variable("x",x);
-   symbol_table.add_variable("y",y);
-
-   expression.register_symbol_table(symbol_table);
-
-   if (!parser.compile(expression_string,expression))
-   {
-      printf("Error: %s\tExpression: %s\n",
-             parser.error().c_str(),
-             expression_string.c_str());
-
-      for (std::size_t i = 0; i < parser.error_count(); ++i)
-      {
-         const error_t error = parser.get_error(i);
-
-         printf("Error: %02d Position: %02d "
-                "Type: [%s] "
-                "Message: %s "
-                "Expression: %s\n",
-                static_cast<int>(i),
-                static_cast<int>(error.token.position),
-                exprtk::parser_error::to_str(error.mode).c_str(),
-                error.diagnostic.c_str(),
-                expression_string.c_str());
-      }
-
-      return;
-   }
-
-   expression.value();
-}
+#include <iostream>
 
 int main()
 {
-   test_function<double>();
+   std::cout << exprtk::information::library << std::endl;
+   std::cout << "Test package successful\n";
    return 0;
 }