Test POSIX 1003.1 2016 chapter 13 "Headers".

And fix one thing that this found: apparently <stdlib.h> should also
make the various *WAIT* macros available.

Bug: N/A
Test: builds
Change-Id: Id879bf3c1bddd1170261a809e7280150a74d6b3d
diff --git a/tests/headers/posix/string_h.c b/tests/headers/posix/string_h.c
new file mode 100644
index 0000000..2440050
--- /dev/null
+++ b/tests/headers/posix/string_h.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#include "header_checks.h"
+
+static void string_h() {
+  MACRO(NULL);
+  TYPE(size_t);
+  TYPE(locale_t);
+
+  FUNCTION(memccpy, void* (*f)(void*, const void*, int, size_t));
+  FUNCTION(memchr, void* (*f)(const void*, int, size_t));
+  FUNCTION(memcmp, int (*f)(const void*, const void*, size_t));
+  FUNCTION(memcpy, void* (*f)(void*, const void*, size_t));
+  FUNCTION(memmove, void* (*f)(void*, const void*, size_t));
+  FUNCTION(memset, void* (*f)(void*, int, size_t));
+  FUNCTION(stpcpy, char* (*f)(char*, const char*));
+  FUNCTION(stpncpy, char* (*f)(char*, const char*, size_t));
+  FUNCTION(strcat, char* (*f)(char*, const char*));
+  FUNCTION(strchr, char* (*f)(const char*, int));
+  FUNCTION(strcmp, int (*f)(const char*, const char*));
+  FUNCTION(strcoll, int (*f)(const char*, const char*));
+  FUNCTION(strcoll_l, int (*f)(const char*, const char*, locale_t));
+  FUNCTION(strcpy, char* (*f)(char*, const char*));
+  FUNCTION(strcspn, size_t (*f)(const char*, const char*));
+  FUNCTION(strdup, char* (*f)(const char*));
+  FUNCTION(strerror, char* (*f)(int));
+  FUNCTION(strerror_l, char* (*f)(int, locale_t));
+  FUNCTION(strerror_r, int (*f)(int, char*, size_t));
+  FUNCTION(strlen, size_t (*f)(const char*));
+  FUNCTION(strncat, char* (*f)(char*, const char*, size_t));
+  FUNCTION(strncmp, int (*f)(const char*, const char*, size_t));
+  FUNCTION(strncpy, char* (*f)(char*, const char*, size_t));
+  FUNCTION(strndup, char* (*f)(const char*, size_t));
+  FUNCTION(strnlen, size_t (*f)(const char*, size_t));
+  FUNCTION(strpbrk, char* (*f)(const char*, const char*));
+  FUNCTION(strrchr, char* (*f)(const char*, int));
+  FUNCTION(strsignal, char* (*f)(int));
+  FUNCTION(strspn, size_t (*f)(const char*, const char*));
+  FUNCTION(strstr, char* (*f)(const char*, const char*));
+  FUNCTION(strtok, char* (*f)(char*, const char*));
+  FUNCTION(strtok_r, char* (*f)(char*, const char*, char**));
+  FUNCTION(strxfrm, size_t (*f)(char*, const char*, size_t));
+  FUNCTION(strxfrm_l, size_t (*f)(char*, const char*, size_t, locale_t));
+}