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count.h
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27 lines (19 loc) · 666 Bytes
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/* stringlib: count implementation */
#ifndef STRINGLIB_FASTSEARCH_H
#error must include "stringlib/fastsearch.h" before including this module
#endif
Py_LOCAL_INLINE(Py_ssize_t)
STRINGLIB(count)(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
const STRINGLIB_CHAR* sub, Py_ssize_t sub_len,
Py_ssize_t maxcount)
{
Py_ssize_t count;
if (str_len < 0)
return 0; /* start > len(str) */
if (sub_len == 0)
return (str_len < maxcount) ? str_len + 1 : maxcount;
count = FASTSEARCH(str, str_len, sub, sub_len, maxcount, FAST_COUNT);
if (count < 0)
return 0; /* no match */
return count;
}