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

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Arash Partow
2020-01-01 00:00:00 +00:00
parent f32d2b4bbb
commit e67b22afd9
25 changed files with 3701 additions and 1792 deletions
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9
exprtk_simple_example_08.cpp
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@ -3,7 +3,7 @@
* C++ Mathematical Expression Toolkit Library *
* *
* Simple Example 8 *
* Author: Arash Partow (1999-2018) *
* Author: Arash Partow (1999-2020) *
* URL: http://www.partow.net/programming/exprtk/index.html *
* *
* Copyright notice: *
@ -18,6 +18,7 @@
#include <cstdio>
#include <string>
#include "exprtk.hpp"
@ -27,7 +28,7 @@ void composite()
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;
typedef exprtk::parser_error::type err_t;
typedef exprtk::function_compositor<T> compositor_t;
typedef typename compositor_t::function function_t;
@ -64,7 +65,7 @@ void composite()
for (std::size_t i = 0; i < parser.error_count(); ++i)
{
error_t error = parser.get_error(i);
const err_t error = parser.get_error(i);
printf("Error: %02d Position: %02d Type: [%14s] Msg: %s\tExpression: %s\n",
static_cast<unsigned int>(i),
@ -77,7 +78,7 @@ void composite()
return;
}
T result = expression.value();
const T result = expression.value();
printf("%s = %e\n", expression_string.c_str(), result);
}