7.5.6.2 Arg Type Number

arg-type = number;

The argument must be a correctly formed integer, without any trailing U’s or L’s. AutoOpts contains a library procedure to convert the string to a number. If you specify range checking with arg-range (see below), then AutoOpts produces a special purpose procedure for this option.

‘scaled’

scaled marks the option so that suffixes of ‘k’, ‘K’, ‘m’, ‘M’, ‘g’, ‘G’, ‘t’, and ‘T’ will multiply the given number by a power of 1000 or 1024. Lower case letters scale by a power of 1000 and upper case scale by a power of 1024.

‘arg-range’

arg-range is used to create a callback procedure for validating the range of the option argument. It must match one of the range entries. Each arg-range should consist of either an integer by itself or an integer range. The integer range is specified by one or two integers separated by the two character sequence, ->. Be sure to quote the entire range string. The definitions parser will not accept the range syntax as a single string token.

The generated procedure imposes the range constraints as follows:

• A number by itself will match that one value.
• The high end of the range may not be INT_MIN, both for obvious reasons and because that value is used to indicate a single-valued match.
• An omitted lower value implies a lower bound of INT_MIN.
• An omitted upper value implies a upper bound of INT_MAX.
• The argument value is required. It may not be optional.
• The value must match one of the entries. If it can match more than one, then you have redundancies, but no harm will come of it.

This document was generated by Bruce Korb on August 21, 2015 using texi2html 1.82.