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Marc Vertes
14bc3b56b8
Status: * [x] parsing code with generics * [x] instantiate generics from concrete types * [x] automatic type inference * [x] support of generic recursive types * [x] support of generic methods * [x] support of generic receivers in methods * [x] support of multiple type parameters * [x] support of generic constraints * [x] tests (see _test/gen*.go) Fixes #1363.
35 lines
667 B
Go
35 lines
667 B
Go
package main
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import "fmt"
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// SumIntsOrFloats sums the values of map m. It supports both int64 and float64
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// as types for map values.
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func SumIntsOrFloats[K comparable, V int64 | float64](m map[K]V) V {
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var s V
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for _, v := range m {
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s += v
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}
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return s
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}
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func main() {
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// Initialize a map for the integer values
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ints := map[string]int64{
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"first": 34,
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"second": 12,
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}
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// Initialize a map for the float values
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floats := map[string]float64{
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"first": 35.98,
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"second": 26.99,
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}
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fmt.Printf("Generic Sums: %v and %v\n",
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SumIntsOrFloats[string, int64](ints),
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SumIntsOrFloats[string, float64](floats))
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}
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// Output:
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// Generic Sums: 46 and 62.97
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