From 4fb93cd82d59dbe17876517baf6285dd37523a41 Mon Sep 17 00:00:00 2001
From: Vladislav Nepogodin <nepogodin.vlad@gmail.com>
Date: Fri, 5 Jul 2024 01:56:16 +0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=91=B7=20gucc:=20add=20helper=20functions?=
 =?UTF-8?q?=20for=20indexing=20viewable=20ranges?=
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---
 gucc/include/gucc/string_utils.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gucc/include/gucc/string_utils.hpp b/gucc/include/gucc/string_utils.hpp
index 96a0884..d9e8927 100644
--- a/gucc/include/gucc/string_utils.hpp
+++ b/gucc/include/gucc/string_utils.hpp
@@ -89,6 +89,16 @@ constexpr auto contains(string_findable auto const& str, std::string_view needle
     return str.find(needle) != str_type::npos;
 }
 
+template <ranges::viewable_range R>
+constexpr auto index_viewable_range(R&& rng, ranges::range_difference_t<R> n) noexcept {
+    return ranges::next(ranges::begin(rng), n);
+}
+
+template <ranges::viewable_range R>
+constexpr auto size_viewable_range(R&& rng) noexcept {
+    return ranges::distance(ranges::begin(rng), ranges::end(rng));
+}
+
 }  // namespace gucc::utils
 
 #endif  // STRING_UTILS_HPP