Function nginx::pcre_get_named_substring

pub unsafe extern "C" fn pcre_get_named_substring(
    arg1: *const pcre, 
    arg2: *const c_char, 
    arg3: *mut c_int, 
    arg4: c_int, 
    arg5: *const c_char, 
    arg6: *mut *const c_char
) -> c_int