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C Programming :: C Preprocessor

C Preprocessor - General Questions
C Preprocessor - Point Out Errors
C Preprocessor - Yes / No Questions
C Preprocessor - C Preprocessor MCQs
C Preprocessor - Find Output of Program
C Preprocessor - True / False Questions
C Preprocessor - Point Out Correct Statements

  1. What will the SWAP macro in the following program be expanded to on preprocessing? will the code compile?

     #include
 #define SWAP(a, b, c)(c t; t=a, a=b, b=t)
  int main() 
  {     
      int x=10, y=20;  
      SWAP(x, y, int);  
      printf("%d %d\n", x, y);      
      return 0;
 }

     

    2. A.

    It compiles
    B.

    Compiles with an warning
    C.

    Not compile
    D.

    Compiles and print nothing

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  2. In which stage the following code
    #include<stdio.h>
    gets replaced by the contents of the file stdio.h

    3. A.
    During editing
    B.
    During linking
    C.
    During execution
    D.
    During preprocessing

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