sgw

When I try to display the address of a char type variable, I don't get the normal hexidecimal address, but some strange symbols. I don't have the same problem with int or string, etc.. Example: char x='#'; cout << &x; The output of this is: #( ( What's the explanation?

Why doesn't the code (2) below produce the same output as the code (1)? Let's say you entered "4" as input: (1) int x; cout << "enter integer: "; cin >> x; cout << x++; cout << ++x; cout << x; The output of the above is "**466**" (as expected). …

The following is a similar program I had when having trouble: float x; int n=0; cout << "enter some numbers separated by space; enter 1.2 when done: "; cin >> x; while (x!=1.2) { n++; cin >> x; } The problem is, when using certain numbers as the sentinel (in …

The number D computed by the following polynomial formula D=(pow(i,5.)/120)-(pow(i,4.)/12)+(23*pow(i,3.)/24)-(83*i*i/12)+(571*i/30) should always be an integer, when i=1,2,3,4,5,.... However, for some i values, each separate term may not be an integer, but when putting together (with additions and subtractions) in the above formula, any non-integer parts would be "cancelled out", and …

In the following program I declared "long" for a, but still getting incorrect negative output after the 1860th term (all are supposed to be positive). What is the cause? int main() { for (int i=1; i<=2000; i++) { long a=i*i*i/2-3*i*i/2+3*i-1; cout << setw(3) << i << "\t" << setw(8) << …

But I've found that when there were "cin" statement(s) earlier in the program, then cin.get() didn't work, only system("pause") worked. Did others encounter the problem as well?

Is anyone here familiar with RoboCup? Does it belong to gaming or something else? Where can I see an actual program example for it? What kind of langauge does it use? Thx.

Hi all, this must be a very basic question... I want to embed a short video clip in a webpage. I want it to automatically start playing when the page is opened, and loop indefinitely (repeating itself over and over automatically). In the html script I did use [CODE] <embed …

What is the difference between these two types of assingment? (a) [CODE]string color("red"); [/CODE] (b) [CODE]string color="red";[/CODE]

Something that puzzles me in the following simple program: [CODE] #include <iostream> using namespace std; int main() { int row; cout << "enter row: "; cin >> row; int K[row], m[row][5]; cout << "Enter all the " << row << " K values:\n"; for (int i=0;i<row;i++) cin >> K[i]; cin.ignore(10,'\n'); …

Here is the simplest program: [CODE]#include <iostream> using namespace std; int main() { cout << "hello" << endl; cin.get(); return 0; }[/CODE] When I ran it (using Dev C++), there is no output, just a blank screen. The problem seems to be from the "endl". If I delete it, or …

I just saw someone's program that assigned string this way: [CODE]string x("snow");[/CODE] It seems to work, as I could display the output x as "snow". Is this a legible way to assign strings? How does it differ from [CODE]string x="snow";[/CODE] ?

In the following very simple program, if the input is [I]not [/I]an integer (e.g. a character symbol), then the output screen would flash and go away. Is there a way to have the output "bad" when one enters a non-integer, just as when one enters a negative number? Thanks in …

I ran the following simple program [B]10 minutes ago and it worked as expected[/B], i.e. it took input "monster" which contained spaces. [B]But few minutes later[/B] I copied the program exactly the same to save as a new program, and [B]it doesn't take the spaces in "monster" input any more[/B]--if …

Hi everyone. I have a layman's question about the search results from google (or other search engines, for that matter): Sometimes when you search someone's name, let's say "John Doe", it brings out a result which turns out to be the [U]search result of a certain database[/U], such as address …

A question/curiosity: When using the time function, why must the argument be 0, as "time(0)"? I tried other numbers and it gave error.

I wrote [CODE]<embed src="mysound.mp3" controls="smallconsole" autostart="true" loop=3>[/CODE] The "loop=3" never workes. It always plays just once. Replacing "loop=3" by "playcount=3" makes no difference. This is the same whether using IE or FireFox. What's the cause? How to play it 3 times (i.e. more than once, but not infinite times)?

When there are several cout statements, if the first cout statement has, say, << fixed << showpoint << setprecision(4), then all the subsequent cout statements *without* these settings will also have that effect. For example, in the following program, [CODE]cout << "sin(" << angle << ") = " << fixed …

Sometimes when I use a lab PC for visual C++, even when a program is very simple and absolutely correct, and sometimes passes the compiler, but when i try to run it, it shows "Fatal error... can't find path...." what's the reason?

Hi, Let's say x=12.34, y=567.89, z=6.38, and we want the output this way: _____$12.34 ____$567.89 ______$6.38 [COLOR="Red"]right-aligned[/COLOR] [COLOR="Green"]with the decimal point lined up[/COLOR] (where the ___ are [I]spaces[/I]) In other words, [U]all[/U] the numbers are right-aligned [U]and[/U] [I]immediately[/I] following "$". How to do that if you don't know what values …

Hi, If I want to print several numbers, say 12.3, 24.038, 154.9181, 0.4778--anyway, just all kinds of numbers, how can I print all of them with [U]fixed number of decimals[/U], say two decimals, that is, the output will be: 12.30, 24.03, 154.91, 0.47... ? The "setprecision(...)" doesn't work because it …

In the following simple program, [CODE]int main() { string name; char sex; cout << "enter M or F: "; cin.get(sex); cout << "enter name: "; [B]getline(cin, name);[/B] cout << name << " is " << sex << endl; return 0; }[/CODE] after the user typed in a character "M" or …

Hi, I'm trying to use the pow function. Extremely simple program like the following, but it never passed compiler: #include <iostream> #include <cmath> int main() { int a, b, c; a=2; b=3; [COLOR="Red"]c=pow(a, b);[/COLOR] cout << c; return 0; } Compiler would highlight the red part. What's wrong?:icon_rolleyes: Thanks in …

I'm completely new to using compilers such as Borland Turbo C++ or MS Visual C++ to create and run C++ programs. They both involve "form" and "projects". Could some kind folks tell me how exactly to create, compile and run a simple program in such environments? In other words, I …