1 files changed, 40 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/pr106248.cc b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/pr106248.cc
new file mode 100644
index 00000000000..6d89a0e5fef
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/pr106248.cc
@@ -0,0 +1,40 @@
+// { dg-do run }
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+test_pr106248()
+{
+  char buf[5] = {'x', 'x', 'x', 'x', 'x'};
+  std::string s("  four");
+  std::istringstream in(s);
+  in >> buf;
+#if __cplusplus >= 202002L
+  // Extraction stops because buffer is full.
+  VERIFY( in.good() );
+#else
+  // PR libstdc++/106248
+  // Extraction stops because all input has been consumed and eofbit is set.
+  VERIFY( in.eof() );
+#endif
+  // Extracted string must be null-terminated.
+  VERIFY( buf[4] == '\0' );
+  VERIFY( std::string(buf) == "four" );
+
+  in.clear();
+  in.str(s);
+  for (int i = 0; i < 5; ++i)
+    s[i] = 'x';
+
+  in.width(5);
+  in >> buf;
+  // Extraction stops due to field width, eofbit not set.
+  VERIFY( in.good() );
+  VERIFY( std::string(buf) == "four" );
+}
+
+int main()
+{
+  test_pr106248();
+}