Integer comparison: Difference between revisions
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(Note: in Python3 ''raw_input()'' will become ''input().''). |
(Note: in Python3 ''raw_input()'' will become ''input().''). |
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An alternative implementation could use a Python dictionary to house a small dispatch table to be indexed by the results of the |
An alternative implementation could use a Python dictionary to house a small dispatch table to be indexed by the results of the built-in ''cmp()'' function. ''cmp()'' returns a value suitable for use as a comparison function in a sorting algorithm: -1, 0 or 1 for <, = or > respectively. Thus we could use: |
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{{works with|Python|2.x}} |
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<lang Python>#!/usr/bin/env python |
<lang Python>#!/usr/bin/env python |
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import sys |
import sys |
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In this case the use of a dispatch table is silly. However, more generally in Python the use of dispatch dictionaries or tables is often preferable to long chains of '''''elif'''' clauses in a condition statement. Python's support of classes and functions (including currying, partial function support, and lambda expressions) as first class objects obviates the need for a "case" or "switch" statement. |
In this case the use of a dispatch table is silly. However, more generally in Python the use of dispatch dictionaries or tables is often preferable to long chains of '''''elif'''' clauses in a condition statement. Python's support of classes and functions (including currying, partial function support, and lambda expressions) as first class objects obviates the need for a "case" or "switch" statement. |
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=={{header|R}}== |
=={{header|R}}== |
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<lang R>print("insert number a") |
<lang R>print("insert number a") |
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