boost::urls::grammar::unsigned_rule

Match an unsigned decimal

Synopsis

Declared in <boost/url/grammar/unsigned_rule.hpp>

template<class Unsigned>
struct unsigned_rule;

Types

Name

value_type

Member Functions

Name

parse

Description

Extra leading zeroes are disallowed.

Value Type

using value_type = Unsigned;

Example

Rules are used with the function parse.

system::result< unsigned short > rv = parse( "32767", unsigned_rule< unsigned short >{} );

BNF

unsigned      = "0" / ( ["1"..."9"] *DIGIT )

Template Parameters

Name

Description

Unsigned

The unsigned integer type used to store the result.

See Also

grammar::parse.

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