diff Doc/libstruct.tex @ 4866:3960340a3252 legacy-trunk

Describe standard float/double support. Rewrite example to be an interactive session
author Guido van Rossum <guido@python.org>
date Fri, 03 Jan 1997 04:20:09 +0000
parents 38ae2a0fc4f3
children a9e7e0ccaa4a
line wrap: on
line diff
--- a/Doc/libstruct.tex	Fri Jan 03 00:26:28 1997 +0000
+++ b/Doc/libstruct.tex	Fri Jan 03 04:20:09 1997 +0000
@@ -101,8 +101,8 @@
 
 Standard size and alignment are as follows: no alignment is required
 for any type (so you have to use pad bytes); short is 2 bytes; int and
-long are 4 bytes.  In this mode, there is no support for float and
-double (\code{'f'} and \code{'d'}).
+long are 4 bytes.  Float and double are 32-bit and 64-bit IEEE floating
+point numbers, respectively.
 
 Note the difference between \code{'@'} and \code{'='}: both use native
 byte order, but the size and alignment of the latter is standardized.
@@ -119,10 +119,14 @@
 big-endian machine):
 
 \bcode\begin{verbatim}
-from struct import *
-pack('hhl', 1, 2, 3) == '\000\001\000\002\000\000\000\003'
-unpack('hhl', '\000\001\000\002\000\000\000\003') == (1, 2, 3)
-calcsize('hhl') == 8
+>>> from struct import *
+>>> pack('hhl', 1, 2, 3)
+'\000\001\000\002\000\000\000\003'
+>>> unpack('hhl', '\000\001\000\002\000\000\000\003')
+(1, 2, 3)
+>>> calcsize('hhl')
+8
+>>> 
 \end{verbatim}\ecode
 
 Hint: to align the end of a structure to the alignment requirement of