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This is what I'm trying to use now. I get a declaration syntax error. The complier is old. Turbo C++.
thanks for the time again.
#include <iostream.h>
void convert_to_f()
void convert_to_c()
int main()
{
int temp, fahr, cel, f_out, yes, no, choice, c_out;
do
{
cout<<"Please choose one of the following conversions\n";
cout<<"1 - Celcius to Fahrenheit.\n";
cout<<"2 - Fahrenheit to Celcius.\n";
cout<<"Please select at this time: ";
cin>>temp;
switch(temp)
{ case 1:
void convert_to_f()
break;
case 2:
void convert_to_c()
break;
default:
cout<<"Invalid choice.";
break;
}
cout<<"\nWould you like to recalculate another temperature? '1' for yes, '0' for no: ";
cin>>choice;
}
while(choice==1);
return 0;
}
//function begins
void convert_to_f()
{
cout<<"You choose Celcius to Fahrenheit.\n";
cout<<"Please enter the degrees in Celcius: ";
cin>>cel;
f_out = (cel * 1.8) + 32;
cout<<"The degrees converted into Fahrenheit is "<<f_out<<".";
}
//end function
//new function
void conver_to_c()
{
cout<<"You choose Fahrenheit to Celcius.\n";
cout<<"Please enter the degrees in Fahrenheit: ";
cin>>fahr;
c_out = (fahr - 32) / 1.8;
cout<<"The degrees converted into Celcius is "<<c_out<<".";
}
//end function
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You would call them just like you would any other function.
"The largest fire starts but with the smallest spark." - David Crow
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As i'm sure you can tell, i'm a beginner writer. so i'm not sure how to do it.
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selfish man  (
i hate people that ask a question and who delete their question once they have the answer.
this is totally selfish behavior, and doesn't encourage to answer much to guys like you 
TOXCCT >>> GEII power
[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]
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I'm very sorry, as much as i am new with c++ language, i am new to the forums. I thought that if i deleted the question it would delete everything because it seems like you were getting fed up replying. again i'm sorry sir, and thank you for the help.
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klutez123 wrote: because it seems like you were getting fed up replying
if i was, i wouldn't have answered your request 
klutez123 wrote: again i'm sorry sir, and thank you for the help.
nevermind. i hope it was helpful at least, so that you solved your problem.
TOXCCT >>> GEII power
[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]
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toxcct wrote:
this is totally selfish behavior, and doesn't encourage to answer much to guys like you
Mee too!, I strongly support your case!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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klutez123 wrote: void convert_to_f()
void convert_to_c()
These two statements (i.e., prototypes) are missing semicolons.
klutez123 wrote: switch(temp)
{ case 1:
void convert_to_f()
break;
case 2:
void convert_to_c()
When calling the functions, omit the void keyword, and add a semicolon.
klutez123 wrote: cin>>cel;
f_out = (cel * 1.8) + 32;
The variables cel and f_out have not been declared in the context of convert_to_f().
"The largest fire starts but with the smallest spark." - David Crow
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Hi all,
Consider this class
(unit1. h)
<code>class MyClass{
public:
MyClass(){};
MyClass(int nNum): m_nNum(nNum){}
~MyClass(){};
private:
int m_nNum;
};</code>
in the main program
<code>
#include"unit1.h"
int main()
{
MyClass myObject(300);
}</code>
The question how many ways to modify the property (myObject.m_nNum) to another number without using setters or friends?
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toxcct wrote: sorry, i don't understand your question after the sample.
may you please rephrase it ?
My question is how many ways can you later modify myObject.m_nNum to a different value
By doing it:
- Outside the class without using friends
- Ingeneous ways to do it inside the class without using a setter method
I hope that is clearer Tox!
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if the member is public, then any function can change it
if the member is protected, only the member functions of the class + children classes + friend functions can change it.
if the member is private, then only member functions are allowed to access it.
that way, you can do whatever you want. a setter is a kind of member function which only goal is to writea field with its parameter, performing if needed a validation check on the parameter before overwriting the data member.
TOXCCT >>> GEII power
[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]
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toxcct wrote: if the member is public, then any function can change it
if the member is protected, only the member functions of the class + children classes + friend functions can change it.
if the member is private, then only member functions are allowed to access it.
I know that, hence I deliberately placed it in the private section
SaRath C wrote: let me ask one question. if we do so, then what is the meaning of data sexurity in C++?
This is a hypothetical question to see what answers the forum comes up with.
-- modified at 9:17 Monday 5th June, 2006
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anyway its cracking me.
let me ask one question. if we do so, then what is the meaning of data sexurity in C++?
SaRath.
"Don't Do Different things... Do Things Differently..."
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You can add to the total number of ways the following unusual one:
*(int*)myObject = 400;
(This is because the MyClass class does not have virtual functions, and m_nNum is the first and only member).
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Viorel. wrote: You can add to the total number of ways the following unusual one:
Good, I want more.
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A similar unusual way is:
int x = 400;
memcpy(&myObject, &x, sizeof(x));
One more way:
class MyClass2
{
public:
int m_nNum;
};
MyClass2 & myObject2 = (MyClass2&)myObject;
myObject2.m_nNum = 400;
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Viorel. wrote: public:
int m_nNum;
};
//
// in main:
//
MyClass2 & myObject2 = (MyClass2&)myObject;
myObject2.m_nNum = 400;
I will prefer get and set function rather that public variable outside the class
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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i hope you understand how bad the answers to you question can be, because of bad programming practices...
this is the only reason why i didn't answered you with such code sample, because i advise you seriously to never use such samples in your code...
security reason is always the best  
TOXCCT >>> GEII power
[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]
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Im not sure my answer is correct or not.
we can change the attribute value by following methods
1. Set value inside the destructor
2. Through a Member pointer
SaRath.
"Don't Do Different things... Do Things Differently..."
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SaRath C wrote: 1. Set value inside the destructor
If i set the value inside the destrutor, then how that value will be persist!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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ThatsAlok wrote: If i set the value inside the destrutor, then how that value will be persist!
actually, a destructor is a function like another. the only implicit call with it is when the object looses focus. but it is exactly like when some tries to delete this in the constructor. it is not really the appropriate place for that. a ctor is mostly to initialize the object state, and the dtor is mostly for releasing memoring that could have been allocated in the object life ; no more, no less, but not the opposite ! 
TOXCCT >>> GEII power
[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]
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toxcct wrote: the only implicit call with it is when the object looses focus.
Rather says Losses focus pernamentaly!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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