help2002

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help2002

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UWA week 33 (2nd semester, week 4) ↓

mid-semester test q10 (all 9)

3:26pm Sat 17th Aug, Manas R.

The question is about the syntax error but initialising N has a syntax error itself. i.e. #define N 10; Does option B, int x = 2 * N; , count as a syntax error?

mid-semester test q10 (all 9)

5:42pm Sat 17th Aug, Christopher M.

"Manas Rawat" <24*0*7*9@s*u*e*t*u*a*e*u*a*> wrote:

> The question is about the syntax error but initialising N has a syntax error itself.

I recommend that you review this statement.

mid-semester test q10 (all 9)

8:12pm Sat 17th Aug, Manas R.

Consider the following code which contains a common error: #define N 10; void function(void) { A) char array[N]; B) int x = 2 * N; C) for(int i=0 ; i<N ++i) { printf("%c\n", array[i] ); } } Which of the following lines contains a syntax error? A. Line A. B. Line B. C. Line C. D. All of A, B, and C. What will be the correct answer?

mid-semester test q10 (all 9)

7:35am Sun 18th Aug, Christopher M.

"Manas Rawat" <24*0*7*9@s*u*e*t*u*a*e*u*a*> wrote:

> What will be the correct answer?

What is *your* thinking on this question. What do *you* believe is the correct answer, and why?

mid-semester test q10 (all 9)

2:37pm Sun 18th Aug, Manas R.

#define N 10; being wrongly initialised, I think all of the above should be the correct answer, as it makes N = 10, resulting in the error in other statements as well.

mid-semester test q10 (all 9)

2:42pm Sun 18th Aug, Manas R.

N 10;**

UWA week 34 (2nd semester, week 5) ↓

mid-semester test q10 (all 9)

6:06am Mon 19th Aug, Christopher M.

"Manas Rawat" <24*0*7*9@s*u*e*t*u*a*e*u*a*> wrote:

> #define N 10; being wrongly initialised, I think all of the above should be the correct answer, as it makes N = 10, resulting in the error in other statements as well.

The #define preprocessor directive, when used as #define pattern1 pattern2, results in all later instances of pattern1 being replaced by pattern2. In this example, N is not a variable, and is not being initialised, but every following use of N is replaced by 10;. You can follow this example by hand, as under test conditions, to find when the pattern 10; now introduces a syntax error in the C code. And because you're not under test conditions, and have access to a compiler, you could have the compiler identify invalid lines. Hope this helps,

mid-semester test Q10 (all 9)

2:38pm Thu 22nd Aug, ANONYMOUS

So here is question number 10 for the midsem:

(10) Consider the following code which contains a common error:

  #define N       10;
  void function(void)
  {
A)    char array[N];
B)    int x = 2 * N;
C)    for(int i=0 ; i<N  ++i) {
          printf("%c\n", array[i] );
      }
  }

Which of the following lines contains a syntax error? A. Line A. B. Line B. C. Line C. D. All of A, B, and C.

why is A the correct answer? (according to the answer sheet) I know that #define N 10; is a wrong syntax but that is not what line A is pointing at

mid-semester test Q10 (all 9)

5:04pm Thu 22nd Aug, Christopher M.

#define N 10; is not invalid syntax (it's for the preprocessor, not for the C compiler).