Objects/stringlib/count.h

   1 /* stringlib: count implementation */
   2
   3 #ifndef STRINGLIB_COUNT_H
   4 #define STRINGLIB_COUNT_H
   5
   6 #ifndef STRINGLIB_FASTSEARCH_H
   7 #error must include "stringlib/fastsearch.h" before including this module
   8 #endif
   9
  10 Py_LOCAL_INLINE(Py_ssize_t)
  11 stringlib_count(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
  12                 const STRINGLIB_CHAR* sub, Py_ssize_t sub_len)
  13 {
  14     Py_ssize_t count;
  15
  16     if (str_len < 0)
  17         return 0; /* start > len(str) */
  18     if (sub_len == 0)
  19         return str_len + 1;
  20
  21     count = fastsearch(str, str_len, sub, sub_len, FAST_COUNT);
  22
  23     if (count < 0)
  24         count = 0; /* no match */
  25
  26     return count;
  27 }
  28
  29 #endif
  30
  31 /*
  32 Local variables:
  33 c-basic-offset: 4
  34 indent-tabs-mode: nil
  35 End:
  36 */