From 38bdee2ba829999862e37999dc212055ebedc4c6 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 1 Apr 2026 15:52:43 +0200
Subject: kstd: fix signatures of libc functions

---
 libs/kstd/include/kstd/cstring | 10 +++++-----
 libs/kstd/src/libc/string.cpp  | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'libs')

diff --git a/libs/kstd/include/kstd/cstring b/libs/kstd/include/kstd/cstring
index a5c41fa..bd8b28d 100644
--- a/libs/kstd/include/kstd/cstring
+++ b/libs/kstd/include/kstd/cstring
@@ -8,12 +8,12 @@ namespace kstd::libc
 
   extern "C"
   {
-    auto memcpy(void * dest, void const * src, std::size_t size) -> void *;
-    auto memset(void * dest, int value, std::size_t size) -> void *;
-    auto memmove(void * dest, void const * src, std::size_t size) -> void *;
-    auto memcmp(void const * lhs, void const * rhs, std::size_t size) -> std::size_t;
+    auto memcpy(void * dest, void const * src, std::size_t size) noexcept -> void *;
+    auto memset(void * dest, int value, std::size_t size) noexcept -> void *;
+    auto memmove(void * dest, void const * src, std::size_t size) noexcept -> void *;
+    auto memcmp(void const * lhs, void const * rhs, std::size_t size) noexcept -> int;
 
-    auto strlen(char const * string) -> std::size_t;
+    auto strlen(char const * string) noexcept -> std::size_t;
   }
 
 }  // namespace kstd::libc
diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
index 63f012c..c9fada1 100644
--- a/libs/kstd/src/libc/string.cpp
+++ b/libs/kstd/src/libc/string.cpp
@@ -9,7 +9,7 @@
 namespace kstd::libc
 {
 
-  auto memcpy(void * dest, void const * src, std::size_t size) -> void *
+  auto memcpy(void * dest, void const * src, std::size_t size) noexcept -> void *
   {
     auto dest_span = std::span{static_cast<std::byte *>(dest), size};
     auto src_span = std::span{static_cast<std::byte const *>(src), size};
@@ -22,7 +22,7 @@ namespace kstd::libc
     return dest;
   }
 
-  auto memset(void * dest, int value, std::size_t size) -> void *
+  auto memset(void * dest, int value, std::size_t size) noexcept -> void *
   {
     auto const byte_value = static_cast<std::byte>(static_cast<unsigned char>(value));
     auto dest_span = std::span{static_cast<std::byte *>(dest), size};
@@ -35,7 +35,7 @@ namespace kstd::libc
     return dest;
   }
 
-  auto memcmp(void const * lhs, void const * rhs, std::size_t size) -> std::size_t
+  auto memcmp(void const * lhs, void const * rhs, std::size_t size) noexcept -> int
   {
     auto left_span = std::span{static_cast<std::byte const *>(lhs), size};
     auto right_span = std::span{static_cast<std::byte const *>(rhs), size};
@@ -49,7 +49,7 @@ namespace kstd::libc
     return std::bit_cast<char>(*mismatched.in1) - std::bit_cast<char>(*mismatched.in2);
   }
 
-  auto memmove(void * dest, void const * src, std::size_t size) -> void *
+  auto memmove(void * dest, void const * src, std::size_t size) noexcept -> void *
   {
     auto dest_span = std::span{static_cast<std::byte *>(dest), size};
     auto src_span = std::span{static_cast<std::byte const *>(src), size};
@@ -70,7 +70,7 @@ namespace kstd::libc
     return dest;
   }
 
-  auto strlen(char const * string) -> std::size_t
+  auto strlen(char const * string) noexcept -> std::size_t
   {
     return std::distance(string, std::ranges::find(string, nullptr, '\0'));
   }
-- 
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