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            The omit[]
            ignores the attribute of its subject parser replacing it with unused.
          
// forwards to <boost/spirit/home/qi/directive/omit.hpp> #include <boost/spirit/include/qi_omit.hpp>
Also, see Include Structure.
| Name | 
|---|
| 
                       | 
Notation
a
                  A Parser.
                
            Semantics of an expression is defined only where it differs from, or
            is not defined in UnaryParser.
          
| Expression | Semantics | 
|---|---|
| 
                       | 
                      Ignore the attribute of the subject parser,  | 
| Expression | Attribute | 
|---|---|
| 
                       | 
                       | 
The complexity is defined by the complexity of the subject parser,
a
| ![[Note]](../../../../images/note.png) | Note | 
|---|---|
| The test harness for the example(s) below is presented in the Basics Examples section. | 
Some using declarations:
using boost::spirit::qi::omit; using boost::spirit::qi::int_; using boost::spirit::ascii::char_;
            This parser ignores the first two characters and extracts the succeeding
            int:
          
int i; test_parser_attr("xx345", omit[char_ >> char_] >> int_, i); std::cout << i << std::endl; // should print 345