num_nonblank.i4.v = str_num_nonblank_c(string.i1a.r, length.i4.v)

	This routine will return the number of non-blank characters
	in a string.

	string		string to search
	length		length of string to search (a value of zero
			will result in a search up to a null terminator)

	This function returns status values as follows:

	CBS_INVARG		invalid length passed
	otherwise		number of non-blank characters

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	str_nonblank_length_c, str_is_blank_c, str_find_first_c, fndfst, strstr,
	strstr_nocase, str_get_first_c

	C/C++ usage:

	static const char	string[] = "Determine number of nonblank characters.  ";
	int	num_nonblank;
	int	length = 0;

	num_nonblank = str_num_nonblank_c(string,length);