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Message: [QUOTE="Keith Thompson, post: 5022300"] C can't use an encoding where ' ' == '\0'; the null character has to be distinct from any other character value. (The only such encoding I'm aware of is the one for Knuth's MIX processor; I'm sure there have been others, but presumably they're all obsolete.) The GSM 7-bit and 8-bit character encodings <[URL]http://en.wikipedia.org/wiki/GSM_03.38[/URL]> use 0x00 for '@'; '@' isn't part of C's basic character set, but still I presume that software that deals with it can't use C's string functions to process it. [/QUOTE]