Ord and round functions

[cnjihia]

Hi
What are the C++ equivalents for the ord and round functions in delphi?What header file do I need to access them?

 

[xwb]

Not sure about round. There is ceil and floor which will give you the greatest integer less than and the smallest integer more than.

For ord, just cast it. For instance

int x = 48;
char c = (char) x;

or

char c = char(x);

To go in the opposite direction,

char c = 'A';
int x = (int) c;

or

int x = int(c);

 

[Leibnitz]

Take a look at thread207-476940

 

[Supernat03]

Quick rounding routine that will fix the floating point flaw when trying to display a value on a form.

double To_Int(double Value)
{
double Lower, Upper, LDiff, UDiff, NewVal;
long int TempVal;
double ReturnVal;

NewVal = Value*10000;
Lower = floor(NewVal);
Upper = ceil(NewVal);
LDiff = NewVal - Lower;
UDiff = Upper - NewVal;
if (LDiff < UDiff)
TempVal = (long int) Lower;
else
TempVal = (long int) Upper;

ReturnVal = (double) TempVal/10000;

return ReturnVal; // Extend 4 decimal places
}