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D.10.5 Character lookups

Function: unsigned * utf8_wc_strchr (const unsigned *str, unsigned chr) ¶

Returns a pointer to the first occurrence of wide character chr in string str, or ‘NULL’, if no such character is encountered.

Function: unsigned * utf8_wc_strchr_ci (const unsigned *str, unsigned chr) ¶

Returns a pointer to the first occurrence of wide character chr (case-insensitive) in string str, or ‘NULL’, if no such character is encountered.

Function: const unsigned * utf8_wc_strstr (const unsigned *vartext, const unsigned *pattern) ¶

Finds the first occurrence of pattern in text. Returns a pointer to the beginning of pattern in text. Returns NULL if no occurrence was found.