This is the mail archive of the gsl-discuss@sources.redhat.com mailing list for the GSL project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
On Tue, 2003-09-30 at 10:58, Z F wrote: > Hello, > > Thank you Pedro for your reply, but I realized I was not clear. > double is an 8-byte quantity (at least on intel) so I need > 64-bit-swapping routines not 32-bit ones which are available. > Also, htonl() and ntohl() are for ints. I could cast double to int but > this would require splitting the double into two parts mantissa and > exponent and applying 32-bit swaps independently. Is this the way to > go? > > Need more input :-) Hi Lazar, Your problem is old "little-endian" (sometimes called "ieee-le") versus "big-endian" (aka "ieee-be" or "network order") byte-ordering format. Theres a lot of literature on the web and even some free tools/libraries to help you do conversions between the two. Just enter the above terms into google and you'll get numerous references such as: http://www.cs.umass.edu/~verts/cs32/endian.html http://info.astrian.net/jargon/terms/l/little-endian.html http://www.tacc.utexas.edu/resources/user_guides/porting/ hth, Ed -- Edward H. Hill III, PhD office: MIT Dept. of EAPS; Room 54-1424; 77 Massachusetts Ave. Cambridge, MA 02139-4307 email: eh3@mit.edu, ed@eh3.com URL: http://web.mit.edu/eh3/ phone: 617-253-0098 fax: 617-253-4464
Attachment:
signature.asc
Description: This is a digitally signed message part
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |