// Copyright Statement:  Paul Stuyvesant for PCS Training Ltd permits others to
// copy, distribute, display, and perform the work. In return, licensees must
// give the original author credit.  No finanial charge may be made for any
// derivitive use of these macros.

// Set up our own setkey macros - allows us to cut
// down parameters to 7.  The advantage of consistently using
// these macros is that they are less prone to programmer errors
// than the original df_setkey() functions.


#define DF_CONST_KEY(A, B, C, D, E, F, G )     \
df_setkey(A, B, C, D, E,                       \
          0,                                   \
          F, G,                                \
          DF_CONST)



#define DF_MASK_KEY(A, B, C, D, E, F, G)       \
df_setkey(A, B, C, D, E,                       \
          0,                                   \
          F, G,                                \
          DF_MASK)



#define DF_CHAR_KEY(A, B, C, D, E, F, G)       \
df_setkey(A, B, C, D, E, F,                    \
          0,                                   \
          G ,                                  \
          DF_CHAR)



// EXAMPLE CODE USING CONST AND MASK
// This Example is using the previously defined
// macros and allows us to only worry about 7
// parameters and the name of the macro indicates
// the type of parameter being used to set the key

DF_CONST_KEY(pKeys, 1,
          offsetof(tr01k40, grctkey),
          member_size(tr01k40, grctkey),
          DF_EQ,
          GRCTK40,
          DF_UPORG);

if(ptr != NULL)
{
DF_MASK_KEY(pKeys, 2,
          offsetof(tr01k40, grctind),
          member_size(tr01k40, grctind),
          DF_O,
          0X21,
          DF_NOORG);
}