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void keyword

 
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  #1  
Old March 13th, 2007, 01:16 PM
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Default void keyword
Hello to all,
I am a trying really hard to understand keywords for a rerort I have to make for my university but I don't seem to get the main idea....
There is a question and if you have any ideas there are all very very wellcome:
Whitch yould be the outcome after operating the func3 ( ), Explain ???
Expand|Select|Wrap|Line Numbers
  1. void func1 (int a)
  2. {
  3.               a=10;
  4. }
  5. int func2 (int a)
  6. {
  7.               a=10;
  8.               return (a);
  9. }
  10. void func3 ( )
  11. {
  12.               int a=2;
  13.               int b=5;
  14.  
  15.               func1 (a);
  16.               b=func2 (a);
  17.               printf("a=%d,  b=%d\n", a, b);
  18. }
  19.  
Best Regards from Greece
Filitsa
Last edited by sicarie; March 13th, 2007 at 01:55 PM. Reason: Added [code] and [/code] tags.
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  #2  
Old March 13th, 2007, 01:57 PM
sicarie's Avatar
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Location: USA
Posts: 3,890
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Quote:
Originally Posted by filitsa
Hello to all,
I am a trying really hard to understand keywords for a rerort I have to make for my university but I don't seem to get the main idea....
There is a question and if you have any ideas there are all very very wellcome:
Whitch yould be the outcome after operating the func3 ( ), Explain ???
Expand|Select|Wrap|Line Numbers
  1. void func1 (int a)
  2. {
  3.               a=10;
  4. }
  5. int func2 (int a)
  6. {
  7.               a=10;
  8.               return (a);
  9. }
  10. void func3 ( )
  11. {
  12.               int a=2;
  13.               int b=5;
  14.  
  15.               func1 (a);
  16.               b=func2 (a);
  17.               printf("a=%d,  b=%d\n", a, b);
  18. }
  19.  
Best Regards from Greece
Filitsa
Ok, so this is a pretty basic example - what were you thinking about this one? Did you try to trace through it with a value? (Hint, assign arbitrarily small values to a and b and move through each line yourself)
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  #3  
Old March 13th, 2007, 02:37 PM
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Location: New York, United States of America
Age: 20
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There's no point in assigning arbitrary values to a and b - they are given values in the first two lines of func3. Knowing what you know about scope and functions, step through the program and find out what answers will be.
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  #4  
Old March 13th, 2007, 02:43 PM
sicarie's Avatar
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Quote:
Originally Posted by Ganon11
There's no point in assigning arbitrary values to a and b - they are given values in the first two lines of func3. Knowing what you know about scope and functions, step through the program and find out what answers will be.
Haha, ah, I feel like an idiot... :(
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