implement memset

2 files changed, 16 insertions, 2 deletions

diff --git a/libs/kstd/include/kstd/cstring b/libs/kstd/include/kstd/cstring
index e97ecac..06932a4 100644
--- a/libs/kstd/include/kstd/cstring
+++ b/libs/kstd/include/kstd/cstring
@@ -9,8 +9,10 @@ namespace kstd::libc
   extern "C"
   {
     auto memcpy(void * dest, void const * src, std::size_t size) -> void *;
+    auto memset(void * dest, std::byte 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 strlen(char const * string) -> std::size_t;
   }
 
diff --git a/libs/kstd/src/libc/string.cpp b/libs/kstd/src/libc/string.cpp
index 4e264f9..302046d 100644
--- a/libs/kstd/src/libc/string.cpp
+++ b/libs/kstd/src/libc/string.cpp
@@ -22,9 +22,16 @@ namespace kstd::libc
     return dest;

   }

 

-  auto strlen(char const * string) -> std::size_t

+  auto memset(void * dest, std::byte value, std::size_t size) -> void *

   {

-    return std::distance(string, std::ranges::find(string, nullptr, '\0'));

+    auto dest_span = std::span{static_cast<std::byte *>(dest), size};

+

+    for (std::size_t i = 0; i < size; ++i)

+    {

+      dest_span[i] = value;

+    }

+

+    return dest;

   }

 

   auto memcmp(void const * lhs, void const * rhs, std::size_t size) -> std::size_t

@@ -62,4 +69,9 @@ namespace kstd::libc
     return dest;

   }

 

+  auto strlen(char const * string) -> std::size_t

+  {

+    return std::distance(string, std::ranges::find(string, nullptr, '\0'));

+  }

+

 }  // namespace kstd::libc
\ No newline at end of file