string_expansion.hpp File Reference

Template string expansion macros. More...

#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/preprocessor/punctuation/comma_if.hpp>

Go to the source code of this file.

Namespaces
	framework
	Framework namespace.

Constant Groups
	framework
	Framework namespace.

Macros
#define	EXPAND_STRING(STRING)
	Expand string literal to char... pack. More...

Detailed Description

Template string expansion macros.

Copyright

Copyright © 2012 iwg molw5
For conditions of distribution and use, see copyright notice in COPYING

Macro Definition Documentation

#define EXPAND_STRING

(

STRING)

Expand string literal to char... pack.

  Expands a string literal to a sequence of \c LENGTH characters suitable for use in 
  \c char... template parameter pack.  Characters beyond the end of the string are
  converted to \c '\0' characters.  For example, the following are equivalent:

      template <char...>
      struct S;
     
      S <'H', 'e', 'l', 'l', 'o', ',', 'w', 'o', 'r', 'l', 'd', '!'> x;
      S <EXPAND_STRING("Hello World!", 12)> x;
     
      \brief LENGTH maximum string length
      \brief STRING string literal
     /
    #define EXPAND_STRING_N(STRING, LENGTH) \
            BOOST_PP_REPEAT(LENGTH, EXPAND_STRING_N_IMPL, STRING)
#else

STRING string literal