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

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ArashPartow
2024-01-01 00:00:00 +00:00
committed by Arash Partow
parent f46bffcd69
commit cc1b800c2b
33 changed files with 67415 additions and 54230 deletions
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53
exprtk_simple_example_18.cpp
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@ -3,7 +3,7 @@
* C++ Mathematical Expression Toolkit Library *
* *
* Simple Example 18 *
* Author: Arash Partow (1999-2023) *
* Author: Arash Partow (1999-2024) *
* URL: https://www.partow.net/programming/exprtk/index.html *
* *
* Copyright notice: *
@ -11,6 +11,7 @@
* 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 *
* *
**************************************************************
*/
@ -30,31 +31,31 @@ void file_io()
typedef exprtk::parser<T> parser_t;
const std::string fileio_program =
" var file_name := 'file.txt'; "
" var stream := null; "
" "
" if (stream := open(file_name,'w')) "
" println('Successfully opened file: ' + file_name); "
" else "
" { "
" println('Failed to open file: ' + file_name); "
" return [false]; "
" } "
" "
" var s := 'Hello world...\n'; "
" "
" for (var i := 0; i < 10; i += 1) "
" { "
" write(stream,s); "
" } "
" "
" if (close(stream)) "
" println('Sucessfully closed file: ' + file_name); "
" else "
" { "
" println('Failed to close file: ' + file_name); "
" return [false]; "
" } ";
" var file_name := 'file.txt'; "
" var stream := null; "
" "
" if (stream := open(file_name,'w')) "
" println('Successfully opened file: ' + file_name); "
" else "
" { "
" println('Failed to open file: ' + file_name); "
" return [false]; "
" }; "
" "
" var s := 'Hello world...\n'; "
" "
" for (var i := 0; i < 10; i += 1) "
" { "
" write(stream,s); "
" }; "
" "
" if (close(stream)) "
" println('Sucessfully closed file: ' + file_name); "
" else "
" { "
" println('Failed to close file: ' + file_name); "
" return [false]; "
" } ";
exprtk::rtl::io::file::package<T> fileio_package;
exprtk::rtl::io::println<T> println;