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rounding to decimals implementation [message #44429]

Wed, 11 March 2015 11:24

aftershock
Messages: 143
Registered: May 2008

Experienced Member

Hi all,

I have not found that in the library.

Here is the implementation.

double roundd ( double n, int decimals )
{
double p = ipow10 ( decimals );
return floor ( n*p + 0.5 ) / p;
}

A.

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Re: rounding to decimals implementation [message #44430 is a reply to message #44429]

Wed, 11 March 2015 11:43

dolik.rce
Messages: 1796
Registered: August 2008
Location: Czech Republic

Ultimate Contributor

aftershock wrote on Wed, 11 March 2015 11:24

I have not found that in the library.

Here is the implementation.

double roundd ( double n, int decimals )
{
double p = ipow10 ( decimals );
return floor ( n*p + 0.5 ) / p;
}

Hi Aftershock,

It is not in the library, but you exactly reinvented what is written in documentation Very Happy

See About rounding double values.

Best regards,
Honza

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