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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 items from the packet, or use "proto_tree_add_item()" and let it extract
the items for you. 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 Don't use "ntohs()", "ntohl()", "htons()", or "htonl()"; the header
files required to define or declare them differ between platforms, and files required to define or declare them differ between platforms, and
you might be able to get away with not including the appropriate header you might be able to get away with not including the appropriate header