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exprtk_simple_example_12.cpp

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exprtk_simple_example_12.cpp

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/*
**************************************************************
* C++ Mathematical Expression Toolkit Library *
* *
* Simple Example 12 *
* Author: Arash Partow (1999-2024) *
* 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. *
* https://www.opensource.org/licenses/MIT *
* SPDX-License-Identifier: MIT *
* *
**************************************************************
*/
#include <string>
#include "exprtk.hpp"
template <typename T>
void bubble_sort()
{
typedef exprtk::symbol_table<T> symbol_table_t;
typedef exprtk::expression<T> expression_t;
typedef exprtk::parser<T> parser_t;
const std::string bubblesort_program =
" var upper_bound := v[]; "
" "
" repeat "
" var new_upper_bound := 0; "
" "
" for (var i := 1; i < upper_bound; i += 1) "
" { "
" if (v[i - 1] > v[i]) "
" { "
" v[i - 1] <=> v[i]; "
" new_upper_bound := i; "
" }; "
" }; "
" "
" upper_bound := new_upper_bound; "
" "
" until (upper_bound <= 1); ";
T v[] = { T(9.1), T(2.2), T(1.3), T(5.4), T(7.5), T(4.6), T(3.7) };
symbol_table_t symbol_table;
symbol_table.add_vector("v",v);
expression_t expression;
expression.register_symbol_table(symbol_table);
parser_t parser;
parser.compile(bubblesort_program,expression);
expression.value();
}
int main()
{
bubble_sort<double>();
return 0;
}
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