issue47258.go

     1  // run
     2  
     3  // Copyright 2021 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package main
     8  
     9  import (
    10  	"fmt"
    11  )
    12  
    13  type Numeric interface {
    14  	int32 | int64 | float64 | complex64
    15  }
    16  
    17  //go:noline
    18  func inc[T Numeric](x T) T {
    19  	x++
    20  	return x
    21  }
    22  func main() {
    23  	if got, want := inc(int32(5)), int32(6); got != want {
    24  		panic(fmt.Sprintf("got %d, want %d", got, want))
    25  	}
    26  	if got, want := inc(float64(5)), float64(6.0); got != want {
    27  		panic(fmt.Sprintf("got %d, want %d", got, want))
    28  	}
    29  	if got, want := inc(complex64(5)), complex64(6.0); got != want {
    30  		panic(fmt.Sprintf("got %d, want %d", got, want))
    31  	}
    32  }
    33
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