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converting between UTF-16, UTF-8 and ISO/ASCII

converting between UTF-16, UTF-8 and ISO/ASCII


I have an application written in C that reads some strings from a file.  The strings can be ISO-8859-1, UTF-16 encoded Unicode or UTF-8 encoded Unicode.

Currently I use the Windows functions MultiByteToWideChar and WideCharToMultiByte to convert between the different formats.  But I'd like to figure out a way to do this that isn't so platform dependent.  Does anyone know of a free C library or other functions that are supported on Windows and the different *NIX platforms that I can use to accomplish this?

Thanks in advance.

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