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changing an interger to a character.

 
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changing an interger to a character.
Quboid
post 1 Sep, 2007 - 03:23 PM
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Hello all,

I am writing an assignment program where i have to generate Pascal's triangle. My current method is to do it using a matrix. How ever in order to make the matrix look like a real triangle i have to store (write) spaces (" ") to the places in the matrix that doesn't store the numbers( of the triangle). This is where my problem is, to perfom operations with my matrix i need it to be an integer, so how do I store spaces (which are characters) to positions of a matrix that was declared as an integer. keep in mind that i am using xcode c++ tool for mac osx. Thanks alot in advance!!


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Bench
post 1 Sep, 2007 - 04:37 PM
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characters are already integers, they're just represented differently by I/O libraries/functions when assigned to the char type.

CODE

int space = ' ';


- remember single quotes for characters. I'm not sure why you need to store spaces in a matrix of ints - you'll need to cast them to char if you wish them to be represented as spaces still. (Else you'll get the character code for the space character. The code will depend on which character set you use, e.g, EBCDIC, ASCII etc). If your matrix has other integral values which happen to be the same as your space character code, then this will introduce a nasty bug - You might want to rethink your design in another way.

This post has been edited by Bench: 1 Sep, 2007 - 04:50 PM
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born2c0de
post 1 Sep, 2007 - 11:42 PM
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Characters are stored as ASCII Values (which are unsigned integers) but occupy only 1 byte irrespective of processor architecture.

Integers take up 2,4 or 8 bytes on 16/32/64 bit systems.

You need not worry about this when you are typecasting an integer to a character or viceversa, but this is worth remembering.
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