From b41581ed656dde74b7a7b961b8a5c08bc61fb7d4 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 24 Jun 2026 13:10:40 +0200
Subject: kstd: simplify kstd::to_string

---
 libs/kstd/kstd/string | 30 +++++++-----------------------
 1 file changed, 7 insertions(+), 23 deletions(-)

(limited to 'libs/kstd')

diff --git a/libs/kstd/kstd/string b/libs/kstd/kstd/string
index de254a1d..682b8404 100644
--- a/libs/kstd/kstd/string
+++ b/libs/kstd/kstd/string
@@ -5,11 +5,12 @@
 #include <kstd/bits/format/context.hpp>
 #include <kstd/bits/format/formatter.hpp>
 #include <kstd/bits/format/formatter/cstring.hpp>
+#include <kstd/bits/format/formatter/integral.hpp>
+#include <kstd/bits/format/vformat.hpp>
 #include <kstd/cstring>
 #include <kstd/os/error.hpp>
 #include <kstd/vector>
 
-#include <algorithm>
 #include <concepts>
 
 namespace kstd
@@ -17,32 +18,15 @@ namespace kstd
   using string = basic_string<char>;
 
   /**
-   * @brief Converts an unsigned integer to a string by converting each digit to the corresponding character and
-   * concatenating them.
-   * @tparam N The type of the unsigned integer to convert.
+   * @brief Converts an integer to a string as if by kstd::format("{}", value).
+   * @tparam IntegralType The type of the unsigned integer to convert.
    * @param value The unsigned integer to convert.
    * @return A string representation of the given unsigned integer.
    */
-  template<typename N>
-    requires std::unsigned_integral<N>
-  [[nodiscard]] constexpr auto inline to_string(N value) -> string
+  template<std::integral IntegralType>
+  [[nodiscard]] constexpr auto inline to_string(IntegralType value) -> string
   {
-    if (value == 0)
-    {
-      return "0";
-    }
-
-    string result;
-
-    while (value > 0)
-    {
-      char const digit = '0' + (value % 10);
-      result.push_back(digit);
-      value /= 10;
-    }
-
-    std::reverse(result.begin(), result.end());
-    return result;
+    return kstd::format("{}", value);
   }
 
   template<>
-- 
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