Function find_first_of

Find first of.

	size_type CL_StringData< CharType, ReferenceClass, StdString >::find_first_of(
		const CL_StringData & s,
		size_type  pos = 0);

	size_type CL_StringData< CharType, ReferenceClass, StdString >::find_first_of(
		const CharType * s,
		size_type  pos,
		size_type  n);

	size_type CL_StringData< CharType, ReferenceClass, StdString >::find_first_of(
		const CharType * s,
		size_type  pos = 0);

	size_type CL_StringData< CharType, ReferenceClass, StdString >::find_first_of(
		CharType c,
		size_type  pos = 0);