1 files changed, 23 insertions, 0 deletions
diff --git a/src/libexpr/gc-alloc.cc b/src/libexpr/gc-alloc.cc
new file mode 100644
index 000000000..558a2f2bc
--- /dev/null
+++ b/src/libexpr/gc-alloc.cc
@@ -0,0 +1,23 @@
+#include "gc-alloc.hh"
+
+#include <cstring>
+#include <string_view>
+
+namespace nix
+{
+
+char const * gcCopyStringIfNeeded(std::string_view toCopyFrom)
+{
+    if (toCopyFrom.empty()) {
+        return "";
+    }
+
+    size_t const size = toCopyFrom.size();
+    char * cstr = gcAllocString(size + 1);
+    memcpy(cstr, toCopyFrom.data(), size);
+    cstr[size] = '\0';
+
+    return cstr;
+}
+
+}