docs/internals/CURLX.md
curlxFunctions that are prefixed with curlx_ are internal global functions that
are written in a way to allow them to be "borrowed" and used outside of the
library: in the curl tool and in the curl test suite.
The curlx functions are not part of the libcurl API, but are stand-alone
functions whose sources can be built and used outside of libcurl. There are
not API or ABI guarantees. The functions are not written or meant to be used
outside of the curl project.
Only functions actually used by the library are provided here.
struct Curl_easy in these files