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401e0fea3a
The specification says "the two arguments must be of the same floating-point type." R=rsc, gri CC=golang-dev https://golang.org/cl/7671045
55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
// errorcheck
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Verify that incorrect invocations of the complex predeclared function are detected.
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// Does not compile.
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package main
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type (
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Float32 float32
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Float64 float64
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Complex64 complex64
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Complex128 complex128
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)
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var (
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f32 float32
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f64 float64
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F32 Float32
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F64 Float64
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c64 complex64
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c128 complex128
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C64 Complex64
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C128 Complex128
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)
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func main() {
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// ok
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c64 = complex(f32, f32)
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c128 = complex(f64, f64)
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_ = complex128(0) // ok
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_ = complex(f32, f64) // ERROR "complex"
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_ = complex(f64, f32) // ERROR "complex"
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_ = complex(f32, F32) // ERROR "complex"
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_ = complex(F32, f32) // ERROR "complex"
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_ = complex(f64, F64) // ERROR "complex"
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_ = complex(F64, f64) // ERROR "complex"
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c128 = complex(f32, f32) // ERROR "cannot use"
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c64 = complex(f64, f64) // ERROR "cannot use"
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c64 = complex(1.0, 2.0) // ok, constant is untyped
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c128 = complex(1.0, 2.0)
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C64 = complex(1.0, 2.0)
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C128 = complex(1.0, 2.0)
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C64 = complex(f32, f32) // ERROR "cannot use"
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C128 = complex(f64, f64) // ERROR "cannot use"
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}
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