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C | Macro & Preprocessor | Question 13

  • Difficulty Level : Medium
  • Last Updated : 14 Nov, 2019

Output of following C program?

#define max abc
#define abc 100
int main()
    printf("maximum is %d", max);
    return 0;

(A) maximum is 100
(B) abcimum is 100
(C) 100imum is 100
(D) abcimum is abc

Answer: (A)

Explanation: After pre-processing, the source code becomes:

int main()
    printf("maximum is %d", 100);
    return 0;

The “max” in maximum is not a token, so it doesn’t match with max while pre-processing.
So, option (A) is correct.

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