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---
title: Reference
description: A complete reference of the cargs command line arguments parser library for C/C++.
---
## Basic
The basic functions available in cargs, which can be used to do basic command line argument parsing.
### Functions
* **[cag_option_prepare]({{ site.baseurl }}{% link reference/cag_option_prepare.md %})**
Prepare argument options context for parsing.
* **[cag_option_fetch]({{ site.baseurl }}{% link reference/cag_option_fetch.md %})**
Fetches an option from the argument list.
* **[cag_option_get]({{ site.baseurl }}{% link reference/cag_option_get.md %})**
Gets the identifier of the option.
* **[cag_option_get_value]({{ site.baseurl }}{% link reference/cag_option_get_value.md %})**
Gets the value from the option.
* **[cag_option_get_index]({{ site.baseurl }}{% link reference/cag_option_get_index.md %})**
Gets the current index of the context.
## Output
This section describes functions which are used to output argument information.
### Functions
* **[cag_option_print]({{ site.baseurl }}{% link reference/cag_option_print.md %})**
Prints all options to the terminal.
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