valid_arguments

Synopsis

template <class FormatString, class ArgumentTypes>
struct valid_arguments
{
  // unspecified
};

Description

ArgumentTypes is a sequence of boxed types representing the types of arguments passed to a printf function. FormatString is a string representing a printf format string. The function returns true when the list of argument types is valid for the format string and false otherwise.

Header

#include <mpllibs/safe_printf/valid_arguments.hpp>

Expression semantics

For any s boost::metaparse::string and t sequence of boxed types:

mpllibs::safe_printf::valid_arguments<s, t>::type::value

is true when the types t contains are correct according to s and false otherwise.

Example

using mpllibs::metamonad::box;

BOOST_STATIC_ASSERT((
  mpllibs::safe_printf::valid_arguments<
    BOOST_METAPARSE_STRING("%d %d\n"),
    boost::mpl::list<box<int>, box<int>>
  >::type::value
));

Copyright Abel Sinkovics (abel at elte dot hu) 2011. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt

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