modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/builtins/strpbrk.c (about)

     1  /* Copyright (C) 2000  Free Software Foundation.
     2  
     3     Ensure all expected transformations of builtin strpbrk occur and
     4     perform correctly.
     5  
     6     Written by Kaveh R. Ghazi, 11/6/2000.  */
     7  
     8  extern void abort(void);
     9  extern char *strpbrk (const char *, const char *);
    10  extern int strcmp (const char *, const char *);
    11  
    12  void fn (const char *foo, const char *const *bar)
    13  {
    14    if (strcmp(strpbrk ("hello world", "lrooo"), "llo world") != 0)
    15      abort();
    16    if (strpbrk (foo, "") != 0)
    17      abort();
    18    if (strpbrk (foo + 4, "") != 0)
    19      abort();
    20    if (strpbrk (*bar--, "") != 0)
    21      abort();
    22    if (strpbrk (*bar, "h") != foo)
    23      abort();
    24    if (strpbrk (foo, "h") != foo)
    25      abort();
    26    if (strpbrk (foo, "w") != foo + 6)
    27      abort();
    28    if (strpbrk (foo + 6, "o") != foo + 7)
    29      abort();
    30  
    31    /* Test at least one instance of the __builtin_ style.  We do this
    32       to ensure that it works and that the prototype is correct.  */
    33    if (__builtin_strpbrk (foo + 6, "o") != foo + 7)
    34      abort();
    35  }
    36  
    37  void
    38  main_test (void)
    39  {
    40    const char *const foo[] = { "hello world", "bye bye world" };
    41    fn (foo[0], foo + 1);
    42  }