help2002

It's UWAweek 47

help2002

This forum is provided to promote discussion amongst students enrolled in CITS2002 Systems Programming.
Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!" followup message.

Displaying the 2 articles in this topic

Showing 2 of 828 articles.
Currently 82 other people reading this forum.

UWA week 36 (2nd semester, mid-semester break) ↓

1st project Global variable declaration issue (both)

12:36pm Thu 5th Sep, Songwen Y.

Consider the following ml code:

one <- 1
two < one + 1

function add val
    print two + val

The variable two declared by assigning the result of an expression to it, and is accessed in function add, it should be a global variable to allow the access. But in C, you can not use expression when declaring a global variable like:

double one = 1;
double two = one + 1;

To address this issue, I tried to declare it outside of main function, without appoint a value to it:

double one = 1;
double two;

and then in main method, before any other statement, change its value:

two = one + 1;

It can be done like this, but a little bit tricky, and I wonder if it is the original intension of the project or just nobody has thought of it.

UWA week 37 (2nd semester, week 7) ↓

1st project Global variable declaration issue (both)

10:39pm Thu 12th Sep, Joshua N.

"Songwen You" [email protected] wrote:

Consider the following ml code:
one <- 1
two < one + 1

function add val
    print two + val
The variable two declared by assigning the result of an expression to it, and is accessed in function add, it should be a global variable to allow the access. But in C, you can not use expression when declaring a global variable like:
double one = 1;
double two = one + 1;
To address this issue, I tried to declare it outside of main function, without appoint a value to it:
double one = 1;
double two;
and then in main method, before any other statement, change its value:
two = one + 1;
It can be done like this, but a little bit tricky, and I wonder if it is the original intension of the project or just nobody has thought of it.

Best to ask Amitava for clarification.