Function libgit2_sys::git_merge_analysis

pub unsafe extern "C" fn git_merge_analysis(
    analysis_out: *mut git_merge_analysis_t, 
    pref_out: *mut git_merge_preference_t, 
    repo: *mut git_repository, 
    their_heads: *mut *const git_annotated_commit, 
    their_heads_len: usize
) -> c_int