directives problem

[mdshafi01]

please can any one explain me about this

what is this i do not know please some one tell me

#define MSG_NAME(name) name, #name
#define FIELD_NAME(name ) name, #name

shafi

[weaknessforcats]

If you do this:
[code=c]
#define MSG_NAME(name) name, #name
...
char arr[]="Hello";
MSG_NAME(arr);
[/code]

The macro produces
[code=c]
char arr[]="Hello";
arr, "arr";
[/code]

which is a char*,char*.

When used as a function argument, it's a way of getting the name of the variable compiled into the code. That way a report can be made at run time that uses the variable name in the report.