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The MPL Reference Manual: c_str
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c_str

Synopsis

template<
      typename Sequence
    >
struct c_str
{
    typedef unspecified type;
    static char const value[];
};

Description

c_str converts the Forward Sequence of Integral Constants Sequence into a null-terminated byte string containing an equivalent sequence.

Parameters

Parameter Requirement Description
Sequence Forward Sequence of Integral Constants A sequence to be converted into a null-terminated byte string.

Expression semantics

For any Forward Sequence of Integral Constants s,

c_str::value;
Return type:

A null-terminated byte string.
Precondition:

size::value <= BOOST_MPL_STRING_MAX_LENGTH.
Semantics:

Equivalent to

char const value[] = {
    at::type::value
  , ...
  , atsize::value-1>::type::value
  , '\0'
};

Complexity

Sequence archetype Complexity
Forward Sequence Linear.

Example

typedef vector_c hello;
assert( 0 == std::strcmp( c_str::value, "hello" ) );
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Copyright © 2009 Eric Niebler
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)