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As for efficiency, using an external library such as libcurl can be more efficient because it provides a higher-level API that abstracts away much of the low-level details involved in making an HTTP request. This makes it easier to write code that is more concise and less error-prone, and also eliminates the need to re-implement common features, such as error handling, that are already included in the library. Additionally, libcurl is a well-maintained and widely-used library, so it is likely to have better performance than hand-rolled code. That being said, in some cases, using a library might not be necessary and writing your own code from scratch may provide more control and customization over the HTTP request process, especially if performance is a primary concern. The decision of which approach to use depends on the specific requirements and trade-offs of each project.
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