1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-73.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-73.c
new file mode 100644
index 0000000..0bb4afe
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-73.c
@@ -0,0 +1,35 @@
+/*
+  { dg-do compile }
+  { dg-options "-Wall" } */
+
+typedef __SIZE_TYPE__ size_t;
+
+int memcmp (const void*, const void*, size_t);
+int strncmp (const char*, const char*, size_t);
+char* stpncpy (char*, const char*, size_t);
+char* strncpy (char*, const char*, size_t);
+
+extern char a4[4], b5[5];
+
+struct A { char a4[4]; };
+
+extern volatile int i;
+extern void* volatile ptr;
+
+void test_stpncpy (struct A *p)
+{
+  ptr = stpncpy (a4, b5, 4);
+  ptr = stpncpy (a4, b5, 5);      // { dg-warning "writing 5 bytes" }
+
+  ptr = stpncpy (p->a4, b5, 4);
+  ptr = stpncpy (p->a4, b5, 5);   // { dg-warning "writing 5 bytes" }
+}
+
+void test_strncpy (struct A *p)
+{
+  ptr = strncpy (a4, b5, 4);
+  ptr = strncpy (a4, b5, 5);      // { dg-warning "writing 5 bytes" }
+
+  ptr = strncpy (p->a4, b5, 4);
+  ptr = strncpy (p->a4, b5, 5);   // { dg-warning "writing 5 bytes" }
+}