There are no formula for that.
This is the normal way of doing it in C (available in the standard
header files)
#define MAX(a,b) ((a) >= (b) ? (a) : (b))
#define MIN(a,b) ((a) <= (b) ? (a) : (b))
Note that the above two constructs have problems if the parameters have
side effects, i.e. for something like:
max = MAX(*a++,*b--);
For c++, there is a algorithm std::max() available in the standard
template library.
/pwm
On Thu, 7 Jun 2007, Philip Bennefall wrote:
> Hi,
> Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
> sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
> and unsigned version of the data type respectively.
>
> Thanks in advance.
>
> Regards
> Philip Bennefall
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