## digitalmars.D.learn - "float" on 3 bytes

- tsalm <tsalm free.fr> Oct 09 2008
- "Denis Koroskin" <2korden gmail.com> Oct 10 2008
- tsalm <tsalm free.fr> Oct 10 2008

Hi, I need to minimize the size of my memory use... My program uses a big array of float. My float have a gap of 0.0000001 and 65536. So i think to store one sort of "float" with : - an "ushort" to have numbers - and a "ubyte" to have the number of digit in the decimal portion (or something like this...). What could be the better way for you ? Thanks in advance for your help, TSalm

Oct 09 2008

On Thu, 09 Oct 2008 20:59:17 +0400, tsalm <tsalm free.fr> wrote:Hi, I need to minimize the size of my memory use... My program uses a big array of float. My float have a gap of 0.0000001 and 65536. So i think to store one sort of "float" with : - an "ushort" to have numbers - and a "ubyte" to have the number of digit in the decimal portion (or something like this...). What could be the better way for you ? Thanks in advance for your help, TSalm

There are 24- and 16-bit floating point type libraries available in C (google for half-float), these could be easily ported to D.

Oct 10 2008

Hi, I need to minimize the size of my memory use... My program uses a big array of float. My float have a gap of 0.0000001 and 65536. So i think to store one sort of "float" with : - an "ushort" to have numbers - and a "ubyte" to have the number of digit in the decimal portion (or something like this...). What could be the better way for you ? Thanks in advance for your help, TSalm

There are 24- and 16-bit floating point type libraries available in C (google for half-float), these could be easily ported to D.

Interesting. Thanks

Oct 10 2008