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i wanna know about the working of preprocessors when dealing with macros in C. 
suppose i have a macro within a macro. say 
#define MAX  MIN
#define MIN 10

if i now write MAX some where in my code. 10 is substituted for it. i wanna know whether first MIN is 
substituted in place of MAX and the subsititution scanned again with 10 substituted for MIN. or directly 10 
is substituted for MAX with some earlier processing some where. 

reply soon

 ==== deepak ----

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