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How To Determine The Maximum Value That A Numeric Variable Can Hold? |
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Answer» For integral types, on a machine that USES two’s complement arithmetic (which is just about any machine you’re likely to use), a SIGNED type can hold numbers from –2(number of bits – 1) to +2(number of bits – 1) – 1. An UNSIGNED type can hold VALUES from 0 to +2(number of bits) – 1. For instance, a 16-bit signed INTEGER can hold numbers from –2^15 (–32768) to +2^15 – 1 (32767).
For integral types, on a machine that uses two’s complement arithmetic (which is just about any machine you’re likely to use), a signed type can hold numbers from –2(number of bits – 1) to +2(number of bits – 1) – 1. An unsigned type can hold values from 0 to +2(number of bits) – 1. For instance, a 16-bit signed integer can hold numbers from –2^15 (–32768) to +2^15 – 1 (32767).
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