How to store integer value in Char?All of my integer types have same

[Guest_imported]

Thanx in advance
1.I declared a variable of type CHAR.My book said you can also store integers in it,but if I ll assign to char variable 65 ,the output will be A.What to do?I´m learning C++ on VC++ program.Could that be cause of my problems?
2.All of integer types have same range(long,short,int).Why?
3.Is placing U and L realy necesseary?In book it says otherwise the value will be stored as int?How would I know,the range is the same.Similar question for U.

unsigned long x=116UL;

Same for floating point type

float x=1.4F

 

[qedusa]

Hi, yes you can use 'char' to count within a range of 256 values. 'short' values have a range of 65,535 and 'long' values range up to over 4 billion or something.

A char takes up one byte of memory, a short two bytes and a long three bytes. You shouldn't have any problems using char to count, for example:

char x = 0;
while (x < 25)
{
// do something
x ++;
}

As long as it is in range. Also, something like:

char x = 4;
char y = 9;
char z = x + y;

Is perfectly legal.

As for adding U and L at the end, I've never bothered.
To differentiate the char value between a character and a number on declaration:

char x = 8; // A number
char y = 'D';// A letter - note the quotes!

If you're having trouble outputting a char 'number' as a number try typecasting it, thus:

/* Do out output stuff here */ << (int)x

To typecast, simply declare the required type in parenthesis before the variable.

Hope this answers your question.

 

[Guest_imported]

Thank you very much.Can you tell me why all of those types have the same range on my computer?Though I don´t get it,what is wrong with my compiler?Made in Taiwan?!

 

[qedusa]

I can't imagine why all the types have the same range wihtout checking a sample of the offending code. What compiler is it?

 

[Guest_imported]

I have MVC++ standard edition.It could be something with my computer,since TP5.5 also did some strange things on a few ocassions.

 

[qedusa]

I'm not too sure about that. Why don't you show a small snippet of your code here and I'll look at it.