[libc-commits] [libc] [libc][stdlib] Add putenv (PR #208339)

[Pavel Labath via libc-commits]

================
@@ -0,0 +1,116 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// Integration tests for putenv.
+///
+//===----------------------------------------------------------------------===//
+
+#include "src/stdlib/getenv.h"
+#include "src/stdlib/putenv.h"
+#include "src/string/strcmp.h"
+#include "src/unistd/environ.h"
+
+#include "test/IntegrationTest/test.h"
+
+#include <errno.h>
+
+static char set_var[] = "PUTENV_TEST=hello";
+static char replace_var[] = "PUTENV_TEST=world";
+static char empty_value[] = "PUTENV_EMPTY=";
+static char special_chars[] = "PUTENV_SPECIAL=!@#$%^&*()";
+
+TEST_MAIN([[maybe_unused]] int argc, [[maybe_unused]] char **argv,
+          [[maybe_unused]] char **envp) {
----------------
labath wrote:

```suggestion
TEST_MAIN() {
```

https://github.com/llvm/llvm-project/pull/208339