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James R. Twine wrote: Man, sometimes I wonder about the people here...
Yeah whatever. So I'm the last one that hasn't memorized all the APIs.
Thanks for that. I know I'll forget it later but I'll remember its existence!
Tidbits like that are the only reason I'm here 
Peace!
Mark
"If you can dodge a wrench, you can dodge a ball."
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I have having a bit of trouble, i need to write a program that converts fahrenheit to celsius (i can do the function for this part) but it needs to start with a loop that first prompts the user to "Enter Temperature:" and then stores the value entered into the array which is supposed to be no more than 50. I am having issues with how to input data into the array starting at 0 and keep going up 1 (all I can do is input data directly to myarray[50], but I want the user to input data and it be entered into the array like
enter data one > put in array[0]
enter data 2 > put in array[1]
The program also has to ask the user if they want to keep entering data by pressing 1, or stop by pressing 0. The program then has to display how many arrays there are of temperatures (not the value of them, just how many there are). Please help!! This is what I have so far, any help greatly appreciated.
// Computer Lab test.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <iostream>
using namespace std;
// call this function to convert celsius to fahrenheit (function name is convert)
double
convert(double celsius){
double fahrenheit = ((9.0/5.0) * celsius) + 32;
return fahrenheit;
};
int _tmain(int argc, _TCHAR* argv[])
{
double myarray[50];
int flag;
flag =1;
while (flag==1)
{
// loop
cout << "Enter Temperature Reading:";
cin >>myarray[50]
;cout << " Enter 1 to input more values, 0 to stop";
cin >>flag;
}
return 0;
}
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You are off to a good start. I see what you need, but there is a practice around here not to do homework for students.
So you tell me what it does so far, and more importantly what still needs to be done.
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No problem, I understand and I hope I can learn through my errors. So far my program I think stores a temporary function at the start that converts any value of number entered into a double fahrenheit and returns it to another double celsius.
I stored that there just for formula's sake, and haven't implemented it or really know how to use it yet.
Then i think in this part I have correctly made an array of 50 doubles called myarray. Then i have made an int value flag that is in place of if the user puts a 1 or 0 to continue/stop the program. I want to be able to make an array that is assumed to be less than 50 values, and then the user to keep entering values until done, but I think I have it setup wrong is it just storing the values inputted into myarray[50] only? Do I have to seperatly do myarray[0], myarray[1], etc each time or is there some other loop i can make that can tell the program to keep entering values starting from [0] until when the user wants to stop. Then it should print out how many arrays there are rather than values in them. I just can't figure out how to stop the array and have the values only how many the user inputed, not all 50. Any help greatly appreciated thanks.
// Computer Lab test.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include
using namespace std;
// call this function to convert celsius to fahrenheit (function name is convert)
double
convert(double celsius){
double fahrenheit = ((9.0/5.0) * celsius) + 32;
return fahrenheit;
};
int _tmain(int argc, _TCHAR* argv[])
{
double myarray[50];
int flag;
flag =1;
while (flag==1)
{
// loop
cout << "Enter Temperature Reading:";
cin >>myarray[50]
;cout << " Enter 1 to input more values, 0 to stop";
cin >>flag;
}
return 0;
}
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planetx22 wrote: cin >>myarray[50]
You're going to the same spot each time. Use a variable here.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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if i make another variable, say i.. and define it like
int i
i=0
(not sure if this is right)
for i=0, i<50, i++
{
// cout "Enter Temperatures";
cin >> myarray[i]
does that work better?
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planetx22 wrote: does that work better?
Probably, but you should surround your code snippet with <pre> tags and replace angle brackets with their non-translated version (see the buttons above the smileys).
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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ok thank you. If i do use this and user myarray[i] as the user input, will this put data into 0-49 of the array , or until the user wants to stop?
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planetx22 wrote: ...will this put data into 0-49 of the array...
Yes.
Why not use one of the STL containers (e.g., vector, list) instead? That way, just enough room is allocated.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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haven't covered that much so we didn't have it mentioned as part of the project. I will look into them and post if I have any problems, thanks.
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planetx22 wrote: haven't covered that much so we didn't have it mentioned as part of the project.
That's fine. I found it better to know how to do it the "hard" way first. Then when I started using MFC (and some of STL), I understood it a lot better.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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can anyone tell me the reason of this error..... please...
Unhandled exception at 0x004129c8 in helo52.exe: 0xC0000005: Access violation writing location 0x0044d510.
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An AV error is usually the result of trying to access memory that is not valid. Given the address shown, I would guess that you had an invalid pointer (or reference if using DLLs w/VC6), or a pointer that was once valid but is no longer (like by double-freeing or trying to use an allocated resource that was previously released).
To debug it, crash it under the debugger to see what variable is being used that caused the crash, and then track its use to determine where it has gone bad. Some situations like buffer over-runs or under-runs can also cause problems like this, because you "step on" the value of a pointer/reference causing a crash when you try to use it.
Peace!
-=- James Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles
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I will tell you the result as soon as I will resolve the problem...thanks very much
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I found a program in C++ which uses this library, but my program doesnt recognize this library. Does someone knows other library to replace it?
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I don't think the library exists any more. Try using that other one.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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Look (real hard) at your initial post. How would you answer it?
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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Does it really support those features?
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Actually the first version supported it, but in the later versions it's depricated.
Press: 1500 to 2,200 messages in just 6 days? How's that possible sir?
Dr.Brad :Well,I just replied to everything Graus did and then argued with Negus for a bit.
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It's no longer deprecated on Vista.
"If you can dodge a wrench, you can dodge a ball."
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 , but Vista the whole would be depricated soon!
Press: 1500 to 2,200 messages in just 6 days? How's that possible sir?
Dr.Brad :Well,I just replied to everything Graus did and then argued with Negus for a bit.
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The initial library is called sys/time.h. I want to know the name of another library who can replace it.
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Anka_Ame wrote: The initial library is called sys/time.h. I want to know the name of another library who can replace it.
That's available on Unix, but not Windows. Which functions from sys/time.h do you need?
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