void keyword 
March 13th, 2007, 02:16 PM
| | Newbie | | Join Date: Mar 2007
Posts: 1
| |
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 ??? -
void func1 (int a)
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{
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a=10;
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}
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int func2 (int a)
-
{
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a=10;
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return (a);
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}
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void func3 ( )
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{
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int a=2;
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int b=5;
-
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func1 (a);
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b=func2 (a);
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printf("a=%d, b=%d\n", a, b);
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}
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Best Regards from Greece
Filitsa
Last edited by sicarie; March 13th, 2007 at 02:55 PM.
Reason: Added [code] and [/code] tags.
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March 13th, 2007, 02:57 PM
|  | Moderator | | Join Date: Nov 2006 Location: USA
Posts: 3,927
| | | re: void keyword
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 ??? -
void func1 (int a)
-
{
-
a=10;
-
}
-
int func2 (int a)
-
{
-
a=10;
-
return (a);
-
}
-
void func3 ( )
-
{
-
int a=2;
-
int b=5;
-
-
func1 (a);
-
b=func2 (a);
-
printf("a=%d, b=%d\n", a, b);
-
}
-
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)
|
March 13th, 2007, 03:37 PM
|  | Moderator | | Join Date: Oct 2006 Location: New York, United States of America
Posts: 3,444
| | | re: void keyword
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.
|
March 13th, 2007, 03:43 PM
| | Moderator | | Join Date: Nov 2006 Location: USA
Posts: 3,927
| | | re: void keyword
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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