From acabbacdee68ad80e829bda56ae5363d04646d2d Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 29 Oct 2025 10:39:30 +0100
Subject: kstd: clean up libc implementation

---
 libs/kstd/src/libc/string.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libs/kstd/src/libc/string.cpp

(limited to 'libs/kstd/src/libc/string.cpp')

diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
new file mode 100644
index 0000000..c6b3847
--- /dev/null
+++ b/libs/kstd/src/libc/string.cpp
@@ -0,0 +1,15 @@
+#include <algorithm>
+#include <cstddef>
+
+namespace kstd::libc
+{
+
+  extern "C"
+  {
+    auto strlen(const char * string) -> std::size_t
+    {
+      return std::distance(string, std::ranges::find(string, nullptr, '\0'));
+    }
+  }
+
+}  // namespace kstd::libc
\ No newline at end of file
-- 
cgit v1.2.3


From b157e2c472d8bd67ac1656404a6a6ee821260f4b Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 29 Oct 2025 15:01:43 +0100
Subject: chore: reformat source code

---
 libs/kstd/src/libc/string.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libs/kstd/src/libc/string.cpp')

diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
index c6b3847..a42aedc 100644
--- a/libs/kstd/src/libc/string.cpp
+++ b/libs/kstd/src/libc/string.cpp
@@ -6,7 +6,7 @@ namespace kstd::libc
 
   extern "C"
   {
-    auto strlen(const char * string) -> std::size_t
+    auto strlen(char const * string) -> std::size_t
     {
       return std::distance(string, std::ranges::find(string, nullptr, '\0'));
     }
-- 
cgit v1.2.3


From fc6d44be383213b7609b5e3c4778e235fb6b00c3 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Fri, 5 Dec 2025 18:48:44 +0100
Subject: kstd: implement memcmp

---
 libs/kstd/src/libc/string.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'libs/kstd/src/libc/string.cpp')

diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
index a42aedc..a9b85fc 100644
--- a/libs/kstd/src/libc/string.cpp
+++ b/libs/kstd/src/libc/string.cpp
@@ -1,5 +1,6 @@
 #include <algorithm>
 #include <cstddef>
+#include <span>
 
 namespace kstd::libc
 {
@@ -10,6 +11,20 @@ namespace kstd::libc
     {
       return std::distance(string, std::ranges::find(string, nullptr, '\0'));
     }
+
+    auto memcmp(void const * lhs, void const * rhs, std::size_t size) -> std::size_t
+    {
+      auto left_span = std::span{static_cast<std::byte const *>(lhs), size};
+      auto right_span = std::span{static_cast<std::byte const *>(rhs), size};
+      auto mismatched = std::ranges::mismatch(left_span, right_span);
+
+      if (mismatched.in1 == left_span.end())
+      {
+        return 0;
+      }
+
+      return std::bit_cast<char>(*mismatched.in1) - std::bit_cast<char>(*mismatched.in2);
+    }
   }
 
 }  // namespace kstd::libc
\ No newline at end of file
-- 
cgit v1.2.3


From 1945dd16716392e70e74efacd19e779f121bd1da Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 15 Dec 2025 16:46:51 +0100
Subject: chore: fix missing includes

---
 libs/kstd/src/libc/string.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libs/kstd/src/libc/string.cpp')

diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
index a9b85fc..319f6fd 100644
--- a/libs/kstd/src/libc/string.cpp
+++ b/libs/kstd/src/libc/string.cpp
@@ -1,5 +1,7 @@
 #include <algorithm>
+#include <bit>
 #include <cstddef>
+#include <iterator>
 #include <span>
 
 namespace kstd::libc
-- 
cgit v1.2.3