vw_throw.h File Reference

#include "vw/common/vw_exception.h"
#include <sstream>

Macros
#define	VW_EXPAND(x)   x
#define	VW_GET_MACRO(_1, _2, NAME, ...)   NAME
#define	THROW_OR_RETURN(...)    VW_EXPAND(VW_GET_MACRO(__VA_ARGS__, THROW_OR_RETURN_NORMAL, THROW_OR_RETURN_VOID, UNUSED)(__VA_ARGS__))
#define	THROW(args)
#define	THROW_EX(ex, args)
#define	VW_ASSERT(condition, args)    if (!(condition)) { THROW(args); }
#define	THROW_OR_RETURN_NORMAL(args, retval)
#define	THROW_OR_RETURN_VOID(args)

Macro Definition Documentation

THROW

#define THROW

(

args

)

Value:

    {                                                            \
      std::ostringstream __msg;                                  \
      __msg << args;                                             \
      throw VW::vw_exception(VW_FILENAME, VW_LINE, __msg.str()); \
    }

THROW_EX

#define THROW_EX	(		ex,
			args
	)

Value:

    {                                              \
      std::ostringstream __msg;                    \
      __msg << args;                               \
      throw ex(VW_FILENAME, VW_LINE, __msg.str()); \
    }

THROW_OR_RETURN

#define THROW_OR_RETURN

(

...

)

VW_EXPAND(VW_GET_MACRO(__VA_ARGS__, THROW_OR_RETURN_NORMAL, THROW_OR_RETURN_VOID, UNUSED)(__VA_ARGS__))

THROW_OR_RETURN_NORMAL

#define THROW_OR_RETURN_NORMAL	(		args,
			retval
	)

Value:

    do {                                                          \
      std::ostringstream __msgA;                                  \
      __msgA << args;                                             \
      throw VW::vw_exception(VW_FILENAME, VW_LINE, __msgA.str()); \
    } while (0)

THROW_OR_RETURN_VOID

#define THROW_OR_RETURN_VOID

(

args

)

Value:

    do {                                                          \
      std::ostringstream __msgB;                                  \
      __msgB << args;                                             \
      throw VW::vw_exception(VW_FILENAME, VW_LINE, __msgB.str()); \
    } while (0)

VW_ASSERT

#define VW_ASSERT	(		condition,
			args
	)		if (!(condition)) { THROW(args); }

VW_EXPAND

#define VW_EXPAND

(

x

)

x

VW_GET_MACRO

#define VW_GET_MACRO	(		_1,
			_2,
			NAME,
			...
	)		NAME