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cmd/gc: reject complex calls with mismatched argument types.
[gostls13.git] / test / cmplx.go
1 // errorcheck
2
3 // Copyright 2010 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 // Verify that incorrect invocations of the complex predeclared function are detected.
8 // Does not compile.
9
10 package main
11
12 type (
13         Float32    float32
14         Float64    float64
15         Complex64  complex64
16         Complex128 complex128
17 )
18
19 var (
20         f32 float32
21         f64 float64
22         F32 Float32
23         F64 Float64
24
25         c64  complex64
26         c128 complex128
27         C64  Complex64
28         C128 Complex128
29 )
30
31 func main() {
32         // ok
33         c64 = complex(f32, f32)
34         c128 = complex(f64, f64)
35
36         _ = complex128(0)     // ok
37         _ = complex(f32, f64) // ERROR "complex"
38         _ = complex(f64, f32) // ERROR "complex"
39         _ = complex(f32, F32) // ERROR "complex"
40         _ = complex(F32, f32) // ERROR "complex"
41         _ = complex(f64, F64) // ERROR "complex"
42         _ = complex(F64, f64) // ERROR "complex"
43
44         c128 = complex(f32, f32) // ERROR "cannot use"
45         c64 = complex(f64, f64)  // ERROR "cannot use"
46
47         c64 = complex(1.0, 2.0) // ok, constant is untyped
48         c128 = complex(1.0, 2.0)
49         C64 = complex(1.0, 2.0)
50         C128 = complex(1.0, 2.0)
51
52         C64 = complex(f32, f32)  // ERROR "cannot use"
53         C128 = complex(f64, f64) // ERROR "cannot use"
54 }