using hex in gcc

using hex in gcc

[dhpant2806]

i want to test some code having hex variable in gcc.how can i do it

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Re: using hex in gcc

[Ángel González]

On 06/06/12 19:14, dhpant2806 wrote:
> i want to test some code having hex variable in gcc.how can i do it
What do you mean? Your question doesn't make much sense.
You don't have 'hex' variables. The way the values are stored is specific
to the architecture you are compiling to (just think that they are
"stored as bits").
Decimal, hexadecimal, binary, etc. is how we input them (in writing the
literals)
or output them.

I have no idea if this is what you wanted, but take a look at the
following program:

#include <stdio.h>

int main() {
    int variableA = 42;
    int variableB = 0x33;
    printf("Variable A: %d decimal - %x hexadecimal\n", variableA,
variableA);
    printf("Variable B: %d decimal - %x hexadecimal\n", variableB,
variableB);
    return 0;
}

Re: using hex in gcc

[dhruv pant]

thanks got it...i was actually  thinking in some other way....
so basically everything is actually stored in binary form.it's for our
convenience and readability that we are converting them to hex or
decimal.....
so suppose...
unsigned int i=10
printf("%x",i) //this will print the hex equivalent of 10?

On 6/7/12, Ángel González <keisial@gmail.com> wrote:
> On 06/06/12 19:14, dhpant2806 wrote:
>> i want to test some code having hex variable in gcc.how can i do it
> What do you mean? Your question doesn't make much sense.
> You don't have 'hex' variables. The way the values are stored is specific
> to the architecture you are compiling to (just think that they are
> "stored as bits").
> Decimal, hexadecimal, binary, etc. is how we input them (in writing the
> literals)
> or output them.
>
> I have no idea if this is what you wanted, but take a look at the
> following program:
>
> #include <stdio.h>
>
> int main() {
>     int variableA = 42;
>     int variableB = 0x33;
>     printf("Variable A: %d decimal - %x hexadecimal\n", variableA,
> variableA);
>     printf("Variable B: %d decimal - %x hexadecimal\n", variableB,
> variableB);
>     return 0;
> }
>
>

Re: using hex in gcc

[Andrew Haley]

On 06/07/2012 07:33 AM, dhruv pant wrote:
> thanks got it...i was actually  thinking in some other way....
> so basically everything is actually stored in binary form.it's for our
> convenience and readability that we are converting them to hex or
> decimal.....
> so suppose...
> unsigned int i=10
> printf("%x",i) //this will print the hex equivalent of 10?

Exactly.  Pocket calculators usually store numbers in decimal,
because for them most of the work is in the I/O.  Computers
usually store numbers in binary: how you print it is up to you.

Andrew.