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The gofrontend code sees that the denominator is not zero, so it computes the values. Dividing zero by a non-zero value produces zero. The language spec doesn't require any of these cases to report an error, so make the errors compiler-specific. Change-Id: I5ed759a3121e38b937744d32250adcbdf2c4d3c2 Reviewed-on: https://go-review.googlesource.com/c/go/+/278117 Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
41 lines
1.2 KiB
Go
41 lines
1.2 KiB
Go
// errorcheck
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// Copyright 2017 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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// Issue 11674: cmd/compile: does not diagnose constant division by
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// zero
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package p
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const x complex64 = 0
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const y complex128 = 0
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var _ = x / 1e-20
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var _ = x / 1e-50 // GC_ERROR "complex division by zero"
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var _ = x / 1e-1000 // GC_ERROR "complex division by zero"
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var _ = x / 1e-20i
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var _ = x / 1e-50i // GC_ERROR "complex division by zero"
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var _ = x / 1e-1000i // GC_ERROR "complex division by zero"
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var _ = x / 1e-45 // smallest positive float32
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var _ = x / (1e-20 + 1e-20i)
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var _ = x / (1e-50 + 1e-20i)
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var _ = x / (1e-20 + 1e-50i)
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var _ = x / (1e-50 + 1e-50i) // GC_ERROR "complex division by zero"
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var _ = x / (1e-1000 + 1e-1000i) // GC_ERROR "complex division by zero"
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var _ = y / 1e-50
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var _ = y / 1e-1000 // GC_ERROR "complex division by zero"
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var _ = y / 1e-50i
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var _ = y / 1e-1000i // GC_ERROR "complex division by zero"
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var _ = y / 5e-324 // smallest positive float64
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var _ = y / (1e-50 + 1e-50)
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var _ = y / (1e-1000 + 1e-50i)
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var _ = y / (1e-50 + 1e-1000i)
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var _ = y / (1e-1000 + 1e-1000i) // GC_ERROR "complex division by zero"
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