4.3. Building an application without the C library

Creating an application that has a main() function causes the C library initialization functions to be included.

If your application does not have a main() function, the C library is not initialized and the following features are not available in your application:

This section refers to creating applications without the library as bare machine C. These applications do not automatically use the full C runtime environment provided by the C library. Even though you are creating an application without the library, some helper functions from the library must be included. There are also many library functions that can be made available with only minor re-implementations.

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