... What applications are there for 8byteLOGICAL types? (Or for 2 byte ... the default size is often 4 bytes for likely performance reasons (register loads ...data, but if space is an issue, why pack logicals into two bytes and not one? Just curious... My guess would be for alignment. Some... memory you'll get higher performance logicals? Chip -- Charles M. "Chip" Coldwell "Turn...
...> types: Â 1 byte, 2 byte 4 byte...and 8byte? What applications are there for 8byteLOGICAL types? Â (Or for 2 byte types?) Storage association rules require than a...the same space as a default LOGICAL. Â N1601.pdf, section 16.4.3...to specify (portably) the smallest available logical type, for instances where I do... over quite so well to logicals, where there are always only ...
... Quite a few compilers support different representations for LOGICAL types: Â 1 byte, 2... What applications are there for 8byteLOGICAL types? Â (Or for 2 byte types?) Storage association rules require than a default ... the same space as a default LOGICAL. Â N1601.pdf, section 16.4.3.1:... me to specify (portably) the smallest available logical type, for instances where I do not ...
... applications are there for 8byteLOGICAL types? Â (Or for 2 ...same space as a default LOGICAL. Â N1601.pdf, section 16.4...integer, default real, or default logical occupies a single numeric storage...to be bigger than 4 byte INTEGERs permits, and it's...throughout to update everything to 8byte INTEGERs, although f03 provide...are storage associated with default LOGICALs. Â Of course the big problem...
...What applications are there for 8byteLOGICAL types? (Or for 2 byte types?) Storage association rules require than a... same space as a default LOGICAL. N1601.pdf, section 16.4.3... integer, default real, or default logical occupies a single numeric storage ... to be bigger than 4 byte INTEGERs permits, and it's ... are storage associated with default LOGICALs. Of course the big problem ...
Quite a few compilers support different representations for LOGICAL types: 1 byte, 2 ... byte? What applications are there for 8byteLOGICAL types? (Or for 2 byte types?) ...understand that the default size is often 4 bytes for likely performance reasons (register loads and ... packing data, but if space is an issue, why pack logicals into two bytes and not one? Just curious... Andrej
... be much less important for subscript values. For four byte integer and eight byte real, you can address 8GB and 16GB respectively with a signed 32...? That the default integer isn't 8bytes, or that no integer is eight bytes. The problem is that the default ...is not 64 bits. Sun Fortran supports 8-byte signed and unsigned integers. I claimed that for most programs it ...
..., but it will be much less important for subscript values. For four byte integer and eight byte real, you can address 8GB and 16GB respectively with a signed 32 bit integer. (Double... They have let us know it. Which problem? That the default integer isn't 8bytes, or that no integer is eight bytes. I claimed that for most programs it wouldn't be ...
... chandler <epc8@juno.com> wrote: 2. Is it legal to set aside 8bytes for a REAL but use only 4? Yes, though that would be a...but I have seen: Integers that take 4 bytes of storage, but only use 2 of ... Double precision reals that take 128 bytes of storage, but only use 80 ... Considering the subject of the thread, logicals that take any of several sizes,...
e p chandler wrote: (snip) 1. So when the default numeric storage unit is 8bytes on PCs, what happens to DOUBLE PRECISION? 2. Is it legal to set aside 8bytes for a REAL but use only 4? 3...., I find it unlikely that the default will be eight byte integer and real, with 16 byte double precision. (Until good hardware support for 16 byte reals.) -- glen
