[.net] C# char size
Author
So im curious, why does sizeof report chars as being 2 bytes, but when i write to a binary file they only take up one byte?
Or the encoding is set to UTF-8, which causes characters in the ASCII range to only occupy one byte.
For example, the default setting of BinaryWriter is to use UTF-8. This is a reasonable choice as it will reduce the file size (for texts that use mostly ASCII characters at least). You can make BinaryWriter use a different encoding (e.g. Unicode) by using the appropriate constructor overload.
Regards,
Andre
For example, the default setting of BinaryWriter is to use UTF-8. This is a reasonable choice as it will reduce the file size (for texts that use mostly ASCII characters at least). You can make BinaryWriter use a different encoding (e.g. Unicode) by using the appropriate constructor overload.
Regards,
Andre
It could be worse, BinaryWriter could default to use Encoding.Default ;)
Also isn't UTF-8 more endian friendly ? I know UTF-8 is my prefered choice of file storage.
Also isn't UTF-8 more endian friendly ? I know UTF-8 is my prefered choice of file storage.
What's really crazy is when you are writing applications in C++/CLI which target the .NET framework, and the sizeof() operator returns a different size for char than Marshal.SizeOf().
Quote:Original post by Mike.Popoloski
What's really crazy is when you are writing applications in C++/CLI which target the .NET framework, and the sizeof() operator returns a different size for char than Marshal.SizeOf().
The same happens in C# (Marshal.SizeOf(typeof(char)) vs sizeof(char)). It's caused by the fact that the CLR assumes CharSet.Ansi if the given type has no CharSet in the StructLayout attribute. System.Char has no StructLayoutAttribute.
Regards,
Andre
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