How to Handle Special Characters and Execute CMD Commands in Visual Studio 2019 C Projects?

How to resolve special characters in Visual Studio 2019 C projects and use them to execute CMD commands?

Special characters and issues using them to execute CMD commands often cause trouble in Visual Studio 2019 C projects. To solve these problems, two core components need to be addressed simultaneously.

Convert to Hex String

To build a hex string consisting of the given special characters, you can use the following steps:

1. Convert characters to their UTF-8 encoding.
2. Iterate over the encoding and extract the hex value of each byte.
3. Concatenate these values ​​into a string.

For example, to convert the character "ā" to a hex string, you can UTF-8 encode it to "xc3xa9" and then convert each byte to hex The production value is "c3a9".

Ensuring proper operation in CMD

To ensure that commands containing special characters are executed correctly in CMD, you need to ensure that the encoding of the command matches the system locale. You can achieve this by following these steps:

1. Force VS and the editor to use UTF-8 encoding: cl /source-charset:utf-8 .....
2. Specify executable String literal encoding of the file: cl .... /execution-charset:utf-8 .....
3. Set the locale when the program is running: std::locale::global(std:: locale{".utf-8"});
4. Set the stream's locale to match your system: std::cout.imbue(streamLocale);
5. std::cin.imbue( streamLocale);

By following these steps, you should be able to handle special characters in Visual Studio 2019 C projects and use them to execute commands in CMD.

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