issue11326.go

     1  // errorcheck
     2  
     3  // Copyright 2015 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  // Tests for golang.org/issue/11326.
     8  
     9  package main
    10  
    11  func main() {
    12  	// The gc compiler implementation uses the minimally required 32bit
    13  	// binary exponent, so these constants cannot be represented anymore
    14  	// internally. However, the language spec does not preclude other
    15  	// implementations from handling these. Don't check the error.
    16  	// var _ = 1e2147483647 // "constant too large"
    17  	// var _ = 1e646456993  // "constant too large"
    18  
    19  	// Any implementation must be able to handle these constants at
    20  	// compile time (even though they cannot be assigned to a float64).
    21  	var _ = 1e646456992  // ERROR "1e\+646456992 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
    22  	var _ = 1e64645699   // ERROR "1e\+64645699 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
    23  	var _ = 1e6464569    // ERROR "1e\+6464569 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
    24  	var _ = 1e646456     // ERROR "1e\+646456 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
    25  	var _ = 1e64645      // ERROR "1e\+64645 overflows float64|floating-point constant overflow|exponent too large|overflows float64|overflows"
    26  	var _ = 1e6464       // ERROR "1e\+6464 overflows float64|floating-point constant overflow|overflows float64|overflows"
    27  	var _ = 1e646        // ERROR "1e\+646 overflows float64|floating-point constant overflow|overflows float64|overflows"
    28  	var _ = 1e309        // ERROR "1e\+309 overflows float64|floating-point constant overflow|overflows float64|overflows"
    29  
    30  	var _ = 1e308
    31  }
    32
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