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funopen

libbsd_sys

Function funopen 

Source 
pub unsafe extern "C" fn funopen(
    cookie: *const c_void,
    readfn: Option<unsafe extern "C" fn(*mut c_void, *mut c_char, c_int) -> c_int>,
    writefn: Option<unsafe extern "C" fn(*mut c_void, *const c_char, c_int) -> c_int>,
    seekfn: Option<unsafe extern "C" fn(*mut c_void, off_t, c_int) -> off_t>,
    closefn: Option<unsafe extern "C" fn(*mut c_void) -> c_int>,
) -> *mut FILE