Re: 32b long int???????

[br0ke@math.smsu.edu (Erik)]

On 13-Dec-1999 Steve Baker wrote:
> Erik wrote:
> 
>> try a float or a double, a double should retain more precision and range
>> than a
>> 64b binary plain, and float is probably "close enough"
> 
> Floats only contain 32 bits and whilst doubles are 64bit, they can't
> accurately
> represent more than 50-odd integer bits because of the bits consumed by the
> exponent.
> 

I thought floats were 64b and doubles were 80 bit. Guess I was mistaken :) long
double displays as 12 bytes, or 96 bits, so it's probly the 80 bit one I was
thinking of?

(don't laught too hard)

#include <stdio.h>
#include <sys/types.h>

int main()
{
    printf(" type      bytes  bits\n");
    printf("short:      %d      %d\n",sizeof(short),sizeof(short)*8);
    printf("int:        %d      %d\n",sizeof(int),sizeof(int)*8);
    printf("long:       %d      %d\n",sizeof(long),sizeof(long)*8);
    printf("long long:  %d      %d\n",sizeof(long long),sizeof(long long)*8);
    printf("int64_t:    %d      %d\n",sizeof(int64_t),sizeof(int64_t)*8);
    printf("float:      %d      %d\n",sizeof(float),sizeof(float)*8);
    printf("double:     %d      %d\n",sizeof(double),sizeof(double)*8);
    printf("long double %d     %d\n",sizeof(long double),sizeof(long double)*8);
    return 0;
}


> -- 
> Steve Baker                  http://web2.airmail.net/sjbaker1
> sjbaker1@airmail.net (home)  http://www.woodsoup.org/~sbaker
> sjbaker@hti.com      (work)
> 
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        -Erik <erik@smluc.org> [http://math.smsu.edu/~br0ke]

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