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Type: Posts; User: Salem

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  1. Replies
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    Is the ":" a useful delimiter? If so, strchr()...

    Is the ":" a useful delimiter?

    If so, strchr() is your friend.
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    > fflush(stdin); This doesn't do what you think...

    > fflush(stdin);
    This doesn't do what you think it does. Remove it.




    if(numOfInputRead==1 && isValid(M)==1)
    break;
    else if (numOfInputRead == 0) {
    printf("Invalid number. Please...
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    That seems like a good approach to me. You'll...

    That seems like a good approach to me.

    You'll need at least a couple of GB of free space for vbox to create the virtual disk that will be used for your Linux distro.
  4. Maybe for (int i = 0; i < resp->count; ...

    Maybe


    for (int i = 0; i < resp->count; i++)
    {
    // How to pass resp->info_entry here to the function func( ) & increment pointer?
    func( &resp->info_entry[i] );
    }
  5. Thread: I've been stuck.

    by Salem
    Replies
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    252

    Personally, I would go with char **teams and make...

    Personally, I would go with char **teams and make use of realloc to extend the array when you've reached some limit on the number of teams added.
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    while(isdigit(current)) Isn't going to exit,...

    while(isdigit(current))
    Isn't going to exit, because current never changes.
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    > n = 'current'- 0; Why the single quotes? ...

    > n = 'current'- 0;
    Why the single quotes?

    Why doesn't your compiler complain?
    C++ Shell
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    Since you don't care about the detail of how time...

    Since you don't care about the detail of how time is represented.

    TIME open_time, close_time, difference;
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    > return 0; Don't forget to clean up the...

    > return 0;
    Don't forget to clean up the malloc'ed memory which you're no longer using.
  10. Your choice of font colours is abominable.

    Your choice of font colours is abominable.
  11. > if (b->grid[j] == b->grid[i]) You're not...

    > if (b->grid[j] == b->grid[i])
    You're not comparing characters, but the (address of) the start of two arrays of characters.

    Which will be of course the same if i == j
  12. You need to use fread() and fwrite() if you're...

    You need to use fread() and fwrite() if you're working with binary data.

    And buf[i] when looping through the buffer.
  13. > pthread_create(&race->runners[i], NULL,...

    > pthread_create(&race->runners[i], NULL, goRunner(RunnerType*), " ");
    You don't specify the type.

    pthread_create(&race->runners[i], NULL, goRunner, " ");
  14. Thread: help with code!

    by Salem
    Replies
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    250

    Same as before. Help w/ my code...

    Same as before.
    Help w/ my code
  15. Question 20.15c...

    Question 20.15c

    Use a temporary variable in your code.
    It's a lot clearer to basically anybody what your intention is.
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    Stop using scanf_s until you've read the manual....

    Stop using scanf_s until you've read the manual.
    scanf_s, _scanf_s_l, wscanf_s, _wscanf_s_l | Microsoft Docs

    You have to pass additional parameters.
    It's not a simple matter of just putting _s...
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    There is no such thing as extending an array....

    There is no such thing as extending an array.
    Either you have an array (of fixed size), or you have dynamically allocated memory.

    You do have to be careful with your use of & in scanf calls...
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    Something like this is simple enough for...

    Something like this is simple enough for homework.


    int getNextId(void) {
    static int id = 0;
    return id++;
    }

    Being declared static, the id variable will remember the last value it had...
  19. You're going to be explaining your metaphores...

    You're going to be explaining your metaphores more often than you'll be explaining the real concepts to begin with.
  20. Thread: Help w/ my code

    by Salem
    Replies
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    285

    Some initial observations. 1. main must be...

    Some initial observations.
    1. main must be specified as returning an int.
    Implicit return types became obsolete in 1989 with the first C standard.

    2. Never EVER use gets()
    gets, gets_s -...
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    Well it might compile, but you need to compile...

    Well it might compile, but you need to compile this 'C' code using a C++ compiler.
    So I made your 'const int' a #define instead.


    $ g++ -D_GNU_SOURCE -Wall main.c
    $ gcc -D_GNU_SOURCE -Wall...
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    Your code doesn't compile.

    Your code doesn't compile.
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    > where is my mistake? How do we know what you...

    > where is my mistake?
    How do we know what you were expecting?

    You shouldn't be calling printf in signal handlers.
    signal-safety(7) - Linux manual page
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    Consider breaking out part of the calculation, so...

    Consider breaking out part of the calculation, so you can separately verify it.


    #include <stdio.h>
    #include <math.h>
    int main(void)
    {
    int year;
    double cobalt_initial;
    printf("Please...
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    Cross-posted here -> return value in a C function...

    Cross-posted here -> return value in a C function - C++ Forum
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