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// errorcheck
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Verify that incorrect invocations of the complex predeclared function are detected.
// Does not compile.
package main
type (
Float32 float32
Float64 float64
Complex64 complex64
Complex128 complex128
)
var (
f32 float32
f64 float64
F32 Float32
F64 Float64
c64 complex64
c128 complex128
C64 Complex64
C128 Complex128
)
func F1() int {
return 1
}
func F3() (int, int, int) {
return 1, 2, 3
}
func main() {
// ok
c64 = complex(f32, f32)
c128 = complex(f64, f64)
_ = complex128(0) // ok
_ = complex(f32, f64) // ERROR "complex"
_ = complex(f64, f32) // ERROR "complex"
_ = complex(f32, F32) // ERROR "complex"
_ = complex(F32, f32) // ERROR "complex"
_ = complex(f64, F64) // ERROR "complex"
_ = complex(F64, f64) // ERROR "complex"
_ = complex(F1()) // ERROR "not enough arguments"
_ = complex(F3()) // ERROR "too many arguments"
_ = complex() // ERROR "not enough arguments"
c128 = complex(f32, f32) // ERROR "cannot use"
c64 = complex(f64, f64) // ERROR "cannot use"
c64 = complex(1.0, 2.0) // ok, constant is untyped
c128 = complex(1.0, 2.0)
C64 = complex(1.0, 2.0)
C128 = complex(1.0, 2.0)
C64 = complex(f32, f32) // ERROR "cannot use"
C128 = complex(f64, f64) // ERROR "cannot use"
}