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// errchk $G -e $F.go
// Copyright 2009 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.
package main
type I interface {}
const (
// assume all types behave similarly to int8/uint8
Int8 int8 = 101;
Minus1 int8 = -1;
Uint8 uint8 = 102;
Const = 103;
Float32 float32 = 104.5;
Float float = 105.5;
ConstFloat = 106.5;
Big float64 = 1e300;
String = "abc";
Bool = true;
)
var (
a1 = Int8 * 100; // ERROR "overflow"
a2 = Int8 * -1; // OK
a3 = Int8 * 1000; // ERROR "overflow"
a4 = Int8 * int8(1000); // ERROR "overflow"
a5 = int8(Int8 * 1000); // ERROR "overflow"
a6 = int8(Int8 * int8(1000)); // ERROR "overflow"
a7 = Int8 - 2*Int8 - 2*Int8; // ERROR "overflow"
a8 = Int8 * Const / 100; // ERROR "overflow"
a9 = Int8 * (Const / 100); // OK
b1 = Uint8 * Uint8; // ERROR "overflow"
b2 = Uint8 * -1; // ERROR "overflow"
b3 = Uint8 - Uint8; // OK
b4 = Uint8 - Uint8 - Uint8; // ERROR "overflow"
b5 = uint8(^0); // ERROR "overflow"
b6 = ^uint8(0); // OK
b7 = uint8(Minus1); // ERROR "overflow"
b8 = uint8(int8(-1)); // ERROR "overflow"
b8a = uint8(-1); // ERROR "overflow"
b9 byte = (1<<10) >> 8; // OK
b10 byte = (1<<10); // ERROR "overflow"
b11 byte = (byte(1)<<10) >> 8; // ERROR "overflow"
b12 byte = 1000; // ERROR "overflow"
b13 byte = byte(1000); // ERROR "overflow"
b14 byte = byte(100) * byte(100); // ERROR "overflow"
b15 byte = byte(100) * 100; // ERROR "overflow"
b16 byte = byte(0) * 1000; // ERROR "overflow"
b16a byte = 0 * 1000; // OK
b17 byte = byte(0) * byte(1000); // ERROR "overflow"
b18 byte = Uint8/0; // ERROR "division by zero"
c1 float64 = Big;
c2 float64 = Big*Big; // ERROR "overflow"
c3 float64 = float64(Big)*Big; // ERROR "overflow"
c4 = Big*Big; // ERROR "overflow"
c5 = Big/0; // ERROR "division by zero"
)
func f(int);
func main() {
f(Int8); // ERROR "convert|wrong type|cannot"
f(Minus1); // ERROR "convert|wrong type|cannot"
f(Uint8); // ERROR "convert|wrong type|cannot"
f(Const); // OK
f(Float32); // ERROR "convert|wrong type|cannot"
f(Float); // ERROR "convert|wrong type|cannot"
f(ConstFloat); // ERROR "truncate"
f(ConstFloat - 0.5); // OK
f(Big); // ERROR "convert|wrong type|cannot"
f(String); // ERROR "convert|wrong type|cannot|incompatible"
f(Bool); // ERROR "convert|wrong type|cannot|incompatible"
}
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