Added cvec_X_lower_bound() function for sorted array search.

1 files changed, 4 insertions, 2 deletions

diff --git a/docs/cvec_api.md b/docs/cvec_api.md
index ef145b94..7aef79d9 100644
--- a/docs/cvec_api.md
+++ b/docs/cvec_api.md
@@ -50,8 +50,10 @@ const cvec_X_value* cvec_X_get(const cvec_X* self, i_valraw raw);
 cvec_X_value*       cvec_X_get_mut(cvec_X* self, i_valraw raw);                              // get mutable value
 cvec_X_iter         cvec_X_find(const cvec_X* self, i_valraw raw);
 cvec_X_iter         cvec_X_find_in(cvec_X_iter i1, cvec_X_iter i2, i_valraw raw);
-cvec_X_iter         cvec_X_bsearch(const cvec_X* self, i_valraw raw);
-cvec_X_iter         cvec_X_bsearch_in(cvec_X_iter i1, cvec_X_iter i2, i_valraw raw);
+                    // On sorted vectors:
+cvec_X_iter         cvec_X_bsearch(const cvec_X* self, i_valraw raw);                        // at elem == raw, else end
+cvec_X_iter         cvec_X_lower_bound(const cvec_X* self, i_valraw raw);                    // at first elem >= raw, else end
+cvec_X_iter         cvec_X_bsearch_in(cvec_X_iter i1, cvec_X_iter i2, i_valraw raw, cvec_X_iter* lower_bound = NULL);
 
 cvec_X_value*       cvec_X_front(const cvec_X* self);
 cvec_X_value*       cvec_X_back(const cvec_X* self);