String conversions

[Steve French]

In looking at various patches for more accurately sizing the required
buffer needed for conversions to UTF-8, the following question came up
more than once.

Functions which do string copying often null terminate the target
string (single byte of \0), and size strings one byte larger than
their string name (for UCS-2 this does not work since the null
termination is two bytes).   Are there local nls codepages in Linux
kernel which require double null termination (e.g. DBCS asian code
pages), and if so how do you tell which ones require "double null
termination?"

-- 
Thanks,

Steve
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