#1,112 – How Integers Are Stored in .NET

Integer values in .NET are stored in memory as described below.  The examples below use a 2-byte short data type as an example.

A value of zero is stored by setting every bit in the storage location to zero.

Positive values are stored directly as their corresponding binary number.

1112-001

The maximum possible integer value has all bits set to 1 except for the leftmost.  So Max = 2^(n-1) – 1, where n is the total number of bits.

Negative integer values are stored using a two’s complement representation, calculated by starting with the bit pattern for the corresponding positive number, negating all of the bits, and then adding 1 to the result.

1112-002

The minimum possible integer value (largest negative value) has only the leftmost bit set to 1.  So Min = -(2^(n-1)), where n is the total number of bits.

 

 

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #1,112 – How Integers Are Stored in .NET

  1. Pingback: Dew Drop – June 6, 2014 (#1792) | Morning Dew

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