How to get the limit on it's range of the double type?

[Viery]

Hi,
I want to write some codes to get the limit of range in real
number.
Could you please give me some sample? Because I am not familiar
with C language.

Thanks,
Viery

[Emmanuel Delahaye]

In 'comp.lang.c', no**********@hotmail.com (Viery) wrote:

I want to write some codes to get the limit of range in real
number.
Could you please give me some sample? Because I am not familiar
with C language.

The values are defined by macros belonging to <float.h>

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The C-language FAQ: http://www.eskimo.com/~scs/C-faq/top.html
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[Malcolm]

"Viery" <no**********@hotmail.com> wrote in message

Hi,
I want to write some codes to get the limit of range in real
number.
Could you please give me some sample?

#include <float.h>
#include <stdio.h>

int main(void)
{
printf("Biggest double %g\n", DBL_MAX);
printf("Smallest fraction %g\n", DBL_MIN);
printf("Decimal precison %d digits\n", (int) DBL_DIG);
return 0;
}

[Joe Wright]

Malcolm wrote:

"Viery" <no**********@hotmail.com> wrote in message

Hi,
I want to write some codes to get the limit of range in real
number.
Could you please give me some sample?

#include <float.h>
#include <stdio.h>

int main(void)
{
printf("Biggest double %g\n", DBL_MAX);
printf("Smallest fraction %g\n", DBL_MIN);
printf("Decimal precison %d digits\n", (int) DBL_DIG);
return 0;
}

Why the cast? DBL_DIG is int.

--
Joe Wright mailto:jo********@comcast.net
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---