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41 lines
636 B
Go
41 lines
636 B
Go
12 years ago
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package main
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import (
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"fmt"
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"reflect"
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)
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type proc func(...interface{}) (interface{}, error)
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func addition(vals ...interface{}) (interface{}, error) {
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addFloats := false
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var accf float64
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var acc int64
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for _, raw := range vals {
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switch v := raw.(type) {
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case int64:
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if addFloats {
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accf += float64(v)
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} else {
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acc += v
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}
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case float64:
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if !addFloats {
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addFloats = true
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accf += float64(acc)
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}
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accf += v
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default:
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return nil, fmt.Errorf("addition is not defined for %v", reflect.TypeOf(v))
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}
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}
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if addFloats {
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return accf, nil
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} else {
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return acc, nil
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}
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panic("not reached")
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}
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