modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr23946.c (about)

     1  
     2  extern int foo (void);
     3  
     4  int
     5  avi_parse_comments (int fd, char *buf, int space_left)
     6  {
     7    int len = 0, readlen = 0, k;
     8    char *data, *c, *d;
     9  
    10    if (fd <= 0 || !buf || space_left <= 0)
    11      return -1;
    12  
    13    memset (buf, 0, space_left);
    14  
    15    readlen = foo ();
    16    if (!(data = malloc (readlen * sizeof (char) + 1)))
    17      return -1;
    18  
    19    c = data;
    20    space_left--;
    21  
    22    while (len < space_left)
    23      {
    24        if (!c || *c == '\0')
    25  	break;
    26        else if (*c == 'I')
    27  	{
    28  	  d = c + 4;
    29  
    30  	  k = 0;
    31  	  while (d[k] != '\r' && d[k] != '\n' && d[k] != '\0')
    32  	    ++k;
    33  	  if (k >= space_left)
    34  	    return len;
    35  
    36  
    37  	  memcpy (buf + len, c, 4);
    38  	  len += 4;
    39  
    40  
    41  	  long2str (buf + len, k + 1);
    42  	  len += 4;
    43  
    44  
    45  	  memcpy (buf + len, d, k);
    46  
    47  	  *(buf + len + k + 1) = '\0';
    48  
    49  
    50  	  if ((k + 1) & 1)
    51  	    {
    52  	      k++;
    53  	      *(buf + len + k + 1) = '\0';
    54  	    }
    55  	  len += k + 1;
    56  
    57  
    58  	  while (*c != '\n' && *c != '\0')
    59  	    ++c;
    60  	  if (*c != '\0')
    61  	    ++c;
    62  	  else
    63  	    break;
    64  
    65  	}
    66      }
    67    free (data);
    68  
    69    return len;
    70  }
    71  
    72