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unnamed variable as place holder inside struct

Does any one know how to create an unnamed variable for place holder in a struct? I know you can do it in bitfiled.

Example:

struct S
{
   int a;
   int b;
   int[5]; //reserved 5 ints but dont' need to name it.
   int c;
   int d;

   int  bit0 : 1;
   int       : 6;
   int  bit7 : 1;

}
</pre?

Parents

0 Karl Hamsher over 20 years ago in reply to Andy Neil

If your objective is simply to avoid the drudgery of typing 'reserved' structure member names, this short AWK script will do it for you:

BEGIN { FS = "[" }

/[ \t]+(char|short|int|long)\[/ {
	count_str = sprintf("%03d", count++)
	$0 = $1 " reserved_" count_str "[" $2
}

{print}

Such that:

struct S
{
   int a;
   int b;
   int[5]; //reserved 5 ints but dont' need to name it.
   char[5]; //reserved 5 ints but dont' need to name it.
   long[5]; //reserved 5 ints but dont' need to name it.
   int[5]; //reserved 5 ints but dont' need to name it.
   int c;
   int d;

   int  bit0 : 1;
   int       : 6;
   int  bit7 : 1;
}

becomes

struct S
{
   int a;
   int b;
   int reserved_000[5]; //reserved 5 ints but dont' need to name it.
   char reserved_001[5]; //reserved 5 ints but dont' need to name it.
   long reserved_002[5]; //reserved 5 ints but dont' need to name it.
   int reserved_003[5]; //reserved 5 ints but dont' need to name it.
   int c;
   int d;

   int  bit0 : 1;
   int       : 6;
   int  bit7 : 1;
}

A native Win32 AWK is available at http://unxutils.sourceforge.net/

Reply

0 Karl Hamsher over 20 years ago in reply to Andy Neil

If your objective is simply to avoid the drudgery of typing 'reserved' structure member names, this short AWK script will do it for you:

BEGIN { FS = "[" }

/[ \t]+(char|short|int|long)\[/ {
	count_str = sprintf("%03d", count++)
	$0 = $1 " reserved_" count_str "[" $2
}

{print}

Such that:

struct S
{
   int a;
   int b;
   int[5]; //reserved 5 ints but dont' need to name it.
   char[5]; //reserved 5 ints but dont' need to name it.
   long[5]; //reserved 5 ints but dont' need to name it.
   int[5]; //reserved 5 ints but dont' need to name it.
   int c;
   int d;

   int  bit0 : 1;
   int       : 6;
   int  bit7 : 1;
}

becomes

struct S
{
   int a;
   int b;
   int reserved_000[5]; //reserved 5 ints but dont' need to name it.
   char reserved_001[5]; //reserved 5 ints but dont' need to name it.
   long reserved_002[5]; //reserved 5 ints but dont' need to name it.
   int reserved_003[5]; //reserved 5 ints but dont' need to name it.
   int c;
   int d;

   int  bit0 : 1;
   int       : 6;
   int  bit7 : 1;
}

A native Win32 AWK is available at http://unxutils.sourceforge.net/

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