Re: [Contiki-developers] Including math.h in contiki

[Marios K. <kou...@cs...>]

I tried casting to "unsigned long int" and again I have the same problem.
So it must be a printf problem...

float f_num = 33000.0;

printf("%d\n",(unsigned long int)f_num);



On 10/4/11 12:08 PM, "Moritz Struebe"
<Mor...@in...> wrote:

>On 2011-10-04 10:29, Marios Koutroullos wrote:
>> I found out that if I print the following float by casting it to int it
>> prints correctly:
>> float f = 32000.0
>> printf(" %d \n", (int)f);
>>
>> However if I try to print the following float I get negative:
>> float f = 33000.0
>> printf(" %d \n", (int)f);
>>
>>
>>
>> How I can display float numbers greater than 33000.0 using msp430-gcc?
>>
>
>This has nothing to do with msp430 but casting in C, integer-width and
>how printf works (it it not Java!). You should grab a decent C-book (one
>of the thicker ons) and read the chapter about casting, as it is likely
>that you will run into problems at some other places, too.
>
>Cheers
>Morty
>
>
>-- 
>Dipl.-Ing. Moritz 'Morty' Struebe (Wissenschaftlicher Mitarbeiter)
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