From e8be14dfc894eeac859f0287d4d5b4f4745c0585 Mon Sep 17 00:00:00 2001
From: Tyge Lovset <tylovset@gmail.com>
Date: Thu, 23 Mar 2023 08:53:04 +0100
Subject: Forgot an increment.

---
 include/stc/algo/filter.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/stc/algo/filter.h b/include/stc/algo/filter.h
index a04dfcb5..7729799f 100644
--- a/include/stc/algo/filter.h
+++ b/include/stc/algo/filter.h
@@ -103,7 +103,7 @@ int main()
     intptr_t _n = 0, _index = 0; \
     C##_iter it = C##_begin(_cnt), _i; \
     while (it.ref && !(pred)) \
-        C##_next(&it); \
+        C##_next(&it), ++_index; \
     for (_i = it; it.ref; C##_next(&it), ++_index) \
         if (pred) C##_value_drop(it.ref), ++_n; \
         else *_i.ref = *it.ref, C##_next(&_i); \
-- 
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