Function __assert_fail 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn __assert_fail(
    func: *const c_char,
    file: *const c_char,
    line: c_int,
    cond: *const c_char,
) -> !

See https://pubs.opengroup.org/onlinepubs/9799919799/functions/assert.html.

Writes information about the function that failed to stderr and calls abort().

Implementation

assert() is defined as a C macro in cbindgen that checks for NDEBUG and if not found gets forwarded to this function call.

Safety

func, file and cond are guaranteed to be non-empty and valid.