fn() isprint

Check if character is printable, i.e. not a control character

/*!
 * @fn isprint
 * 
 * @headerfile <cctype>
 * 
 * @brief Check if character is printable, i.e. not a control character
 * 
 * @signature bool isprint(c);
 * 
 * @param[in] c The character to be checked. Type: <tt>int</tt>
 * 
 * @return bool <tt>true</tt> (non-zero) if <tt>c</tt> is a printable character.
 * 
 * @section Remarks
 * 
 * This is non-SeqAn, plain c and listed for completeness.
 * 
 * @see http://www.cplusplus.com/reference/clibrary/cctype/isprint/
 * @see http://www.cppreference.com/wiki/string/character_classes
 * @see isgraph
 */