[libc] Implemented wcsdup libc function (#150453)

Implemented wcsdup by templating internal strdup function

1 files changed, 3 insertions, 3 deletions

diff --git a/libc/src/string/allocating_string_utils.h b/libc/src/string/allocating_string_utils.h
index 1dece510e796..e2f61f77b0c7 100644
--- a/libc/src/string/allocating_string_utils.h
+++ b/libc/src/string/allocating_string_utils.h
@@ -20,15 +20,15 @@
 namespace LIBC_NAMESPACE_DECL {
 namespace internal {
 
-LIBC_INLINE cpp::optional<char *> strdup(const char *src) {
+template <typename T> LIBC_INLINE cpp::optional<T *> strdup(const T *src) {
   if (src == nullptr)
     return cpp::nullopt;
   size_t len = string_length(src) + 1;
   AllocChecker ac;
-  char *newstr = new (ac) char[len];
+  T *newstr = new (ac) T[len];
   if (!ac)
     return cpp::nullopt;
-  inline_memcpy(newstr, src, len);
+  inline_memcpy(newstr, src, len * sizeof(T));
   return newstr;
 }