1 files changed, 22 insertions, 2 deletions
diff --git a/test/std/input.output/file.streams/fstreams/ofstream.assign/nonmember_swap.pass.cpp b/test/std/input.output/file.streams/fstreams/ofstream.assign/nonmember_swap.pass.cpp
index d58f5f2560042..31f2153ebd4c3 100644
--- a/test/std/input.output/file.streams/fstreams/ofstream.assign/nonmember_swap.pass.cpp
+++ b/test/std/input.output/file.streams/fstreams/ofstream.assign/nonmember_swap.pass.cpp
@@ -16,13 +16,33 @@
 //   void swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y);
 
 #include <fstream>
+#include <utility>
 #include <cassert>
 #include "platform_support.h"
 
+std::pair<std::string, std::string> get_temp_file_names() {
+  std::pair<std::string, std::string> names;
+  names.first = get_temp_file_name();
+
+  // Create the file so the next call to `get_temp_file_name()` doesn't
+  // return the same file.
+  std::FILE *fd1 = std::fopen(names.first.c_str(), "w");
+
+  names.second = get_temp_file_name();
+  assert(names.first != names.second);
+
+  std::fclose(fd1);
+  std::remove(names.first.c_str());
+
+  return names;
+}
+
 int main()
 {
-    std::string temp1 = get_temp_file_name();
-    std::string temp2 = get_temp_file_name();
+    std::pair<std::string, std::string> temp_files = get_temp_file_names();
+    std::string& temp1 = temp_files.first;
+    std::string& temp2 = temp_files.second;
+    assert(temp1 != temp2);
     {
         std::ofstream fs1(temp1.c_str());
         std::ofstream fs2(temp2.c_str());