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Type: Posts; User: Princeton

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    void main(int argc, char* argv[]) { ...

    void main(int argc, char* argv[])
    {
    printf("%d\n", x());
    getchar();
    }

    int x(void)
    {
    return rand() % 10;
    }
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    Both are worth having simply because they serve...

    Both are worth having simply because they serve different purposes. The former is a language reference that comes close to the C standard in accuracy while still maintaing an approachable air. There...
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    >I was already wondering why it was saying...

    >I was already wondering why it was saying "integer without a cast".
    That is a sign that a function is being used before its declaration. Without a declaration, functions are assumed to return int,...
  4. Thread: void

    by Princeton
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    >void add() = a function that has no return and...

    >void add() = a function that has no return and has an unspecified number of parameters.
    >int function(void) = a function that has an int return and no parameters.
    It really depends on whether or...
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    >arg= argument? >So whats the 'c' and the 'v'...

    >arg= argument?
    >So whats the 'c' and the 'v' after arg?
    argc == argument count
    argv == argument vector

    In theory you may name the arguments whatever you like, argc and argv are merely common...
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    >>Is it possable, that user types there file, and...

    >>Is it possable, that user types there file, and program would open/create file named file.txt?
    Yes, however you would be required to append the appropriate extension before opening the stream.

    ...
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    >>Google for 'ifstream' and 'ofstream'. With the...

    >>Google for 'ifstream' and 'ofstream'.
    With the extraordinary numbers of bad examples I would hesitate to suggest this. Perhaps a direct link to a well known high quality example would be better....
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    >>The ".h" header suffix has been phased out as a...

    >>The ".h" header suffix has been phased out as a c++ standard.
    conio.h is not a standard header, so that change does not apply.
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    >>what is the diference between the endl,flush...

    >>what is the diference between the endl,flush
    endl will print a newline and flush the stream, flush will not print a newline and flush the stream.

    >>this is the princeton's way!!!
    Well, it is...
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    >>so say if(!strcmp(m[],n[]) if (strcmp(m, n)...

    >>so say if(!strcmp(m[],n[])

    if (strcmp(m, n) == 0)
    Or the equivalent but arguably less clear


    if (!strcmp(m, n))

    However, in this case because the arrays are not terminated by a null...
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    >>if ((cfPtr = fopen("clients.dat","r") == NULL)...

    >>if ((cfPtr = fopen("clients.dat","r") == NULL)
    Your parentheses are not balanced. This is what you want.


    if ((cfPtr = fopen("clients.dat","r")) == NULL)
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    >>OH, it's a tip "int instead of void" or rule ?...

    >>OH, it's a tip "int instead of void" or rule ?
    It is a rule. The C++ standard requires main to return an integer except in very specialized implementations where it imposes no restrictions. The...
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    Did you remember to include windows.h?

    Did you remember to include windows.h?
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    Red Hat and SuSE both offer the parted utility if...

    Red Hat and SuSE both offer the parted utility if I recall correctly, so it is possible with both.
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    If you use the new headers then you must also...

    If you use the new headers then you must also remember that every standard name is embedded within the std namespace.


    #include <iostream>

    using namespace std; // Add this for the easiest fix...
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    If you can manage to acquire a second hard drive...

    If you can manage to acquire a second hard drive then it would be much easier to simply use that for Linux and leave the Windows drive unchanged. However, Mandrake does support a feature that allows...
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    >>int sum = ONE + TW0; The letter O can be...

    >>int sum = ONE + TW0;
    The letter O can be easily confused for the number 0. The define is TWO yet you used TW0. Feel free to change your viewing font if the two still look identical.
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    Yes, you are right. I should have been more...

    Yes, you are right. I should have been more specific so as to avoid bashing the tool. However if the design of a function does not lend itself to being used correctly then it most certainly is a...
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    >>What i was wondering is it possible to...

    >>What i was wondering is it possible to dynamically create these array[][] varibles
    Yes, of course.


    int **array = new int*[rows];
    for (int x = 0; x < rows; x++) {
    array[x] = new int[cols];...
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    >>but isn't that a problem with scanf then? Yes,...

    >>but isn't that a problem with scanf then?
    Yes, it is a problem with scanf. But it is not unique to scanf. The same problem can occur with any input function that reads a single character and does...
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    Try using the same solution after every call to...

    Try using the same solution after every call to scanf and see if the problem persists. scanf is a very complex function that is difficult to use properly even for experienced programmers. Once again...
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    Or better yet, modularize each operation into a...

    Or better yet, modularize each operation into a specialized function so a proper solution can be used without cluttering the main function. :)


    #include <ctype.h>
    #include <math.h>
    #include...
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    The problem is not necessarily with scanf, but...

    The problem is not necessarily with scanf, but character input in general. When you ask an interactive user to enter a single character, two are actually placed on the input stream. The first is the...
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    >>If classes only modified their own data -...

    >>If classes only modified their own data - wouldn't this limit all the cool stuff classes can do?
    Some would argue that the "cool stuff" is undesirable from a design standpoint. In my experience...
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    It is possible to have a reference member within...

    It is possible to have a reference member within a class, but you will need to take more care in the constructor because references must be initialized upon creation. Fortunately, a constructor...
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