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Add Yet Another Portability Recommendation. 

svn path=/trunk/; revision=19855
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Guy Harris 2006-11-07 09:12:30 +00:00
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commit 8f3f19975d
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doc/README.developer
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@ -201,6 +201,14 @@ Wireshark is running. Use the tvbuff routines to extract individual
items from the packet, or use "proto_tree_add_item()" and let it extract
the items for you.
Don't use structures that overlay packet data, or into which you copy
packet data; the C programming language does not guarantee any
particular alignment of fields within a structure, and even the
extensions that try to guarantee that are compiler-specific and not
necessarily supported by all compilers used to build Wireshark. Using
bitfields in those structures are even worse; the order of bitfields
is not guaranteed.
Don't use "ntohs()", "ntohl()", "htons()", or "htonl()"; the header
files required to define or declare them differ between platforms, and
you might be able to get away with not including the appropriate header