Function new_number 

pub unsafe fn new_number(n: f64) -> *mut _xmlXPathObject

Build a number object.

SAFETY

The function touches crate-global state only; it is safe as long as the caller respects the library’s global initialization/cleanup ordering (xmlInitParser before use, xmlCleanupParser only after all users are done).

Violating the global lifecycle ordering, or calling this after teardown or from a signal handler, is undefined behavior.