diff options
Diffstat (limited to 'lib.c')
| -rw-r--r-- | lib.c | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -12055,6 +12055,38 @@ val find_max(val seq, val testfun_in, val keyfun_in) return nil; } +val find_maxes(val seq, val testfun_in, val keyfun_in) +{ + val self = lit("find-maxes"); + val testfun = default_arg(testfun_in, greater_f); + val keyfun = default_arg(keyfun_in, identity_f); + seq_iter_t iter; + val elem; + seq_build_t build; + + seq_iter_init(self, &iter, seq); + seq_build_init(self, &build, seq); + + if (seq_get(&iter, &elem)) { + val maxkey = funcall1(keyfun, elem); + + seq_add(&build, elem); + + while (seq_get(&iter, &elem)) { + val key = funcall1(keyfun, elem); + if (funcall2(testfun, key, maxkey)) { + maxkey = key; + seq_build_init(self, &build, seq); + seq_add(&build, elem); + } else if (!funcall2(testfun, maxkey, key)) { + seq_add(&build, elem); + } + } + } + + return seq_finish(&build); +} + val find_max_key(val seq, val testfun_in, val keyfun_in) { val self = lit("find-max-key"); @@ -12085,6 +12117,11 @@ val find_min(val seq, val testfun, val keyfun) return find_max(seq, default_arg(testfun, less_f), keyfun); } +val find_mins(val seq, val testfun, val keyfun) +{ + return find_maxes(seq, default_arg(testfun, less_f), keyfun); +} + val find_min_key(val seq, val testfun, val keyfun) { return find_max_key(seq, default_arg(testfun, less_f), keyfun); |