If the following program (myprog) is run from the command line as myprog friday tuesday sunday, What would be the output? main(int argc, char *argv[]) { printf("%c",*++argv[1]); } a) r b) f c) m d) y

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Tanuja

  • Oct 25th, 2005
 

a) r

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aniljoo

  • Feb 12th, 2007
 

argv[1] refers to first comand line parameter here it is myprog . *++ refers to y

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Amber Bhardwaj

  • Apr 15th, 2014
 

For example, the command line

gcc -o myprog myprog.c
would result in the following values internal to GCC:


Code
  1. argc

    2. 

  2. 4 

    3. 

  3. argv[0]

    4. 

  4. gcc 

    5. 

  5. argv[1]

    6. 

  6. -o 

    7. 

  7. argv[2]

    8. 

  8. myprog 

    9. 

  9. argv[3]

    10. 

  10. myprog.c

    11. 

  11.  


As you can see, the first argument (argv[0]) is the name by which the program was called, in this case gcc. Thus, there will always be at least one argument to a program, and argc will always be at least 1.

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