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24 Cards in this Set
- Front
- Back
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What are the value types?
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Value types are types that derive from System.Type. There are three types of value types. Built-in, user-defined and enumerations
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Where do value types reside?
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On the stack. Therefore, the data contained in them can be retrieved directly.
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What is the range of System.SByte (sbyte)?
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-128 to 127.
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How many bytes does a System.SByte take?
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1 byte or 8 bits.
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What is System.SByte commonly used for?
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Signed byte values
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What is the range of System.Byte (byte)?
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0 to 255. (128 + 127 = 255)
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How many bytes does a System.Byte (byte) take?
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1 byte or 8 bits
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What is System.Byte commonly used for?
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Unsigned byte values
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What is the range of System.Int16 (short)?
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-32,768 to 32,767 or 215.
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How many bytes does a System.Int16 (short) take?
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2 byte of 16 bits
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What is System.Int16 commonly used for?
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Interoperability and special uses like small range integers like (0 to 100).
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What is the range of System.Int32 (int)?
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-2,147,483,648 to 2,147,483,647 or 231.
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How many bytes does a System.Int32 (int) take?
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4 byte or 32 bits
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What is System.Int32 (int) commonly used for?
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Whole number (integral) counting
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What is the range of System.UInt32 (uint)?
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0 to 4,294,967,295 or 232.
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How many bytes does a System.Int32 (int) take?
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4 byte or 32 bits
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What is System.Int32 (uint) commonly used for?
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Whole number (integral) counting < zero.
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What is the range of System.Int64 (long)?
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-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.
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How many bytes does a System.Int64 (long) take?
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8 byte or 64 bits
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What is System.Int64 (long) commonly used for?
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Large whole number (integral) counting.
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What is the range of System.UInt64 (ulong)?
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0 to 18,446,744,073,709,551,615.
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How many bytes does a System.UInt64 (ulong) take?
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8 byte or 64 bits.
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What is System.UInt64 (ulong) commonly used for?
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Large whole number (integral) counting < zero.
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Are unsigned types CLS-compliant?
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No. No unsiged types, ie byte (System.Byte), ushort (System.UInt16), uint (System.UInt32), ulong (System.UInt64), are NOT CLS-compliant. Reasoning is that some languages, like VB6, do not support unsigned types.
Sidebar: Remember Intel processors used little-endian architecture and most Alpha. |
