Return multiple values: Difference between revisions
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m (→{{header|Factor}}: Use bi* to prevent swap.) |
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Its stack effect declares that ''*/'' always returns 2 values. To return a variable number of values, a word must bundle those values into a [[sequence]] (perhaps an array or vector). For example, ''factors'' (defined in ''math.primes.factors'' and demonstrated at [[Prime decomposition#Factor]]) returns a sequence of prime factors. |
Its stack effect declares that ''*/'' always returns 2 values. To return a variable number of values, a word must bundle those values into a [[sequence]] (perhaps an array or vector). For example, ''factors'' (defined in ''math.primes.factors'' and demonstrated at [[Prime decomposition#Factor]]) returns a sequence of prime factors. |
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=={{header|Go}}== |
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Functions can return multiple values in Go: |
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<lang go>func addsub(x, y int) (int, int) { |
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return x + y, x - y |
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}</lang> |
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Or equivalently using named return style: |
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<lang go>func addsub(x, y int) (sum, difference int) { |
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sum = x + y |
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difference = x - y |
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return |
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}</lang> |
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You can assign to a comma-separated list of targets: |
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<lang go>sum, difference := addsub(33, 12) |
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fmt.Printf("33 + 12 = %d\n", sum) |
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fmt.Printf("33 - 12 = %d\n", difference)</lang> |
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=={{header|J}}== |
=={{header|J}}== |
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