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/* Copyright (C) 2000  Free Software Foundation.

   Ensure all expected transformations of builtin strstr occur and

   perform correctly.

   Written by Kaveh R. Ghazi, 11/6/2000.  */

extern void abort(void);

extern char *strstr (const char *, const char *);

void

main_test (void)

{

  const char *const foo = "hello world";

  if (strstr (foo, "") != foo)

    abort();

  if (strstr (foo + 4, "") != foo + 4)

    abort();

  if (strstr (foo, "h") != foo)

    abort();

  if (strstr (foo, "w") != foo + 6)

    abort();

  if (strstr (foo + 6, "o") != foo + 7)

    abort();

  if (strstr (foo + 1, "world") != foo + 6)

    abort();

  /* Test at least one instance of the __builtin_ style.  We do this

     to ensure that it works and that the prototype is correct.  */

  if (__builtin_strstr (foo + 1, "world") != foo + 6)

    abort();

}