-// $G $D/$F.go && $L $F.$A && ./$A.out
+// run
// 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.
+// Test implicit and explicit conversions of constants.
+
package main
const (
- ci8 = -1<<7;
- ci16 = -1<<15 + 100;
- ci32 = -1<<31 + 100000;
- ci64 = -1<<63 + 10000000001;
-
- cu8 = 1<<8 - 1;
- cu16 = 1<<16 - 1234;
- cu32 = 1<<32 - 1234567;
- cu64 = 1<<64 - 1234567890123;
-
- cf32 = 1e8 + 0.5;
- cf64 = -1e8 + 0.5;
+ ci8 = -1 << 7
+ ci16 = -1<<15 + 100
+ ci32 = -1<<31 + 100000
+ ci64 = -1<<63 + 10000000001
+
+ cu8 = 1<<8 - 1
+ cu16 = 1<<16 - 1234
+ cu32 = 1<<32 - 1234567
+ cu64 = 1<<64 - 1234567890123
+
+ cf32 = 1e8 + 0.5
+ cf64 = -1e8 + 0.5
)
var (
- i8 int8 = ci8;
- i16 int16 = ci16;
- i32 int32 = ci32;
- i64 int64 = ci64;
-
- u8 uint8 = cu8;
- u16 uint16 = cu16;
- u32 uint32 = cu32;
- u64 uint64 = cu64;
-
-// f32 float32 = 1e8 + 0.5;
-// f64 float64 = -1e8 + 0.5;
+ i8 int8 = ci8
+ i16 int16 = ci16
+ i32 int32 = ci32
+ i64 int64 = ci64
+
+ u8 uint8 = cu8
+ u16 uint16 = cu16
+ u32 uint32 = cu32
+ u64 uint64 = cu64
+
+ // f32 float32 = 1e8 + 0.5
+ // f64 float64 = -1e8 + 0.5
)
-func chki8(i, v int8) { if i != v { panicln(i, "!=", v) } }
-func chki16(i, v int16) { if i != v { panicln(i, "!=", v) } }
-func chki32(i, v int32) { if i != v { panicln(i, "!=", v) } }
-func chki64(i, v int64) { if i != v { panicln(i, "!=", v) } }
-func chku8(i, v uint8) { if i != v { panicln(i, "!=", v) } }
-func chku16(i, v uint16) { if i != v { panicln(i, "!=", v) } }
-func chku32(i, v uint32) { if i != v { panicln(i, "!=", v) } }
-func chku64(i, v uint64) { if i != v { panicln(i, "!=", v) } }
-//func chkf32(f, v float32) { if f != v { panicln(f, "!=", v) } }
-//func chkf64(f, v float64) { if f != v { panicln(f, "!=", v) } }
+func chki8(i, v int8) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chki16(i, v int16) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chki32(i, v int32) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chki64(i, v int64) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chku8(i, v uint8) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chku16(i, v uint16) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chku32(i, v uint32) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+func chku64(i, v uint64) {
+ if i != v {
+ println(i, "!=", v)
+ panic("fail")
+ }
+}
+//func chkf32(f, v float32) { if f != v { println(f, "!=", v); panic("fail") } }
+//func chkf64(f, v float64) { if f != v { println(f, "!=", v); panic("fail") } }
func main() {
- chki8(int8(i8), ci8 & 0xff - 1<<8);
- chki8(int8(i16), ci16 & 0xff);
- chki8(int8(i32), ci32 & 0xff - 1<<8);
- chki8(int8(i64), ci64 & 0xff);
- chki8(int8(u8), cu8 & 0xff - 1<<8);
- chki8(int8(u16), cu16 & 0xff);
- chki8(int8(u32), cu32 & 0xff);
- chki8(int8(u64), cu64 & 0xff);
-// chki8(int8(f32), 0);
-// chki8(int8(f64), 0);
-
- chki16(int16(i8), ci8 & 0xffff - 1<<16);
- chki16(int16(i16), ci16 & 0xffff - 1<<16);
- chki16(int16(i32), ci32 & 0xffff - 1<<16);
- chki16(int16(i64), ci64 & 0xffff - 1<<16);
- chki16(int16(u8), cu8 & 0xffff);
- chki16(int16(u16), cu16 & 0xffff - 1<<16);
- chki16(int16(u32), cu32 & 0xffff);
- chki16(int16(u64), cu64 & 0xffff - 1<<16);
-// chki16(int16(f32), 0);
-// chki16(int16(f64), 0);
-
- chki32(int32(i8), ci8 & 0xffffffff - 1<<32);
- chki32(int32(i16), ci16 & 0xffffffff - 1<<32);
- chki32(int32(i32), ci32 & 0xffffffff - 1<<32);
- chki32(int32(i64), ci64 & 0xffffffff);
- chki32(int32(u8), cu8 & 0xffffffff);
- chki32(int32(u16), cu16 & 0xffffffff);
- chki32(int32(u32), cu32 & 0xffffffff - 1<<32);
- chki32(int32(u64), cu64 & 0xffffffff - 1<<32);
-// chki32(int32(f32), 0);
-// chki32(int32(f64), 0);
-
- chki64(int64(i8), ci8 & 0xffffffffffffffff - 1<<64);
- chki64(int64(i16), ci16 & 0xffffffffffffffff - 1<<64);
- chki64(int64(i32), ci32 & 0xffffffffffffffff - 1<<64);
- chki64(int64(i64), ci64 & 0xffffffffffffffff - 1<<64);
- chki64(int64(u8), cu8 & 0xffffffffffffffff);
- chki64(int64(u16), cu16 & 0xffffffffffffffff);
- chki64(int64(u32), cu32 & 0xffffffffffffffff);
- chki64(int64(u64), cu64 & 0xffffffffffffffff - 1<<64);
-// chki64(int64(f32), 0);
-// chki64(int64(f64), 0);
-
-
- chku8(uint8(i8), ci8 & 0xff);
- chku8(uint8(i16), ci16 & 0xff);
- chku8(uint8(i32), ci32 & 0xff);
- chku8(uint8(i64), ci64 & 0xff);
- chku8(uint8(u8), cu8 & 0xff);
- chku8(uint8(u16), cu16 & 0xff);
- chku8(uint8(u32), cu32 & 0xff);
- chku8(uint8(u64), cu64 & 0xff);
-// chku8(uint8(f32), 0);
-// chku8(uint8(f64), 0);
-
- chku16(uint16(i8), ci8 & 0xffff);
- chku16(uint16(i16), ci16 & 0xffff);
- chku16(uint16(i32), ci32 & 0xffff);
- chku16(uint16(i64), ci64 & 0xffff);
- chku16(uint16(u8), cu8 & 0xffff);
- chku16(uint16(u16), cu16 & 0xffff);
- chku16(uint16(u32), cu32 & 0xffff);
- chku16(uint16(u64), cu64 & 0xffff);
-// chku16(uint16(f32), 0);
-// chku16(uint16(f64), 0);
-
- chku32(uint32(i8), ci8 & 0xffffffff);
- chku32(uint32(i16), ci16 & 0xffffffff);
- chku32(uint32(i32), ci32 & 0xffffffff);
- chku32(uint32(i64), ci64 & 0xffffffff);
- chku32(uint32(u8), cu8 & 0xffffffff);
- chku32(uint32(u16), cu16 & 0xffffffff);
- chku32(uint32(u32), cu32 & 0xffffffff);
- chku32(uint32(u64), cu64 & 0xffffffff);
-// chku32(uint32(f32), 0);
-// chku32(uint32(f64), 0);
-
- chku64(uint64(i8), ci8 & 0xffffffffffffffff);
- chku64(uint64(i16), ci16 & 0xffffffffffffffff);
- chku64(uint64(i32), ci32 & 0xffffffffffffffff);
- chku64(uint64(i64), ci64 & 0xffffffffffffffff);
- chku64(uint64(u8), cu8 & 0xffffffffffffffff);
- chku64(uint64(u16), cu16 & 0xffffffffffffffff);
- chku64(uint64(u32), cu32 & 0xffffffffffffffff);
- chku64(uint64(u64), cu64 & 0xffffffffffffffff);
-// chku64(uint64(f32), 0);
-// chku64(uint64(f64), 0);
+ chki8(int8(i8), ci8&0xff-1<<8)
+ chki8(int8(i16), ci16&0xff)
+ chki8(int8(i32), ci32&0xff-1<<8)
+ chki8(int8(i64), ci64&0xff)
+ chki8(int8(u8), cu8&0xff-1<<8)
+ chki8(int8(u16), cu16&0xff)
+ chki8(int8(u32), cu32&0xff)
+ chki8(int8(u64), cu64&0xff)
+ // chki8(int8(f32), 0)
+ // chki8(int8(f64), 0)
+
+ chki16(int16(i8), ci8&0xffff-1<<16)
+ chki16(int16(i16), ci16&0xffff-1<<16)
+ chki16(int16(i32), ci32&0xffff-1<<16)
+ chki16(int16(i64), ci64&0xffff-1<<16)
+ chki16(int16(u8), cu8&0xffff)
+ chki16(int16(u16), cu16&0xffff-1<<16)
+ chki16(int16(u32), cu32&0xffff)
+ chki16(int16(u64), cu64&0xffff-1<<16)
+ // chki16(int16(f32), 0)
+ // chki16(int16(f64), 0)
+
+ chki32(int32(i8), ci8&0xffffffff-1<<32)
+ chki32(int32(i16), ci16&0xffffffff-1<<32)
+ chki32(int32(i32), ci32&0xffffffff-1<<32)
+ chki32(int32(i64), ci64&0xffffffff)
+ chki32(int32(u8), cu8&0xffffffff)
+ chki32(int32(u16), cu16&0xffffffff)
+ chki32(int32(u32), cu32&0xffffffff-1<<32)
+ chki32(int32(u64), cu64&0xffffffff-1<<32)
+ // chki32(int32(f32), 0)
+ // chki32(int32(f64), 0)
+
+ chki64(int64(i8), ci8&0xffffffffffffffff-1<<64)
+ chki64(int64(i16), ci16&0xffffffffffffffff-1<<64)
+ chki64(int64(i32), ci32&0xffffffffffffffff-1<<64)
+ chki64(int64(i64), ci64&0xffffffffffffffff-1<<64)
+ chki64(int64(u8), cu8&0xffffffffffffffff)
+ chki64(int64(u16), cu16&0xffffffffffffffff)
+ chki64(int64(u32), cu32&0xffffffffffffffff)
+ chki64(int64(u64), cu64&0xffffffffffffffff-1<<64)
+ // chki64(int64(f32), 0)
+ // chki64(int64(f64), 0)
+
+
+ chku8(uint8(i8), ci8&0xff)
+ chku8(uint8(i16), ci16&0xff)
+ chku8(uint8(i32), ci32&0xff)
+ chku8(uint8(i64), ci64&0xff)
+ chku8(uint8(u8), cu8&0xff)
+ chku8(uint8(u16), cu16&0xff)
+ chku8(uint8(u32), cu32&0xff)
+ chku8(uint8(u64), cu64&0xff)
+ // chku8(uint8(f32), 0)
+ // chku8(uint8(f64), 0)
+
+ chku16(uint16(i8), ci8&0xffff)
+ chku16(uint16(i16), ci16&0xffff)
+ chku16(uint16(i32), ci32&0xffff)
+ chku16(uint16(i64), ci64&0xffff)
+ chku16(uint16(u8), cu8&0xffff)
+ chku16(uint16(u16), cu16&0xffff)
+ chku16(uint16(u32), cu32&0xffff)
+ chku16(uint16(u64), cu64&0xffff)
+ // chku16(uint16(f32), 0)
+ // chku16(uint16(f64), 0)
+
+ chku32(uint32(i8), ci8&0xffffffff)
+ chku32(uint32(i16), ci16&0xffffffff)
+ chku32(uint32(i32), ci32&0xffffffff)
+ chku32(uint32(i64), ci64&0xffffffff)
+ chku32(uint32(u8), cu8&0xffffffff)
+ chku32(uint32(u16), cu16&0xffffffff)
+ chku32(uint32(u32), cu32&0xffffffff)
+ chku32(uint32(u64), cu64&0xffffffff)
+ // chku32(uint32(f32), 0)
+ // chku32(uint32(f64), 0)
+
+ chku64(uint64(i8), ci8&0xffffffffffffffff)
+ chku64(uint64(i16), ci16&0xffffffffffffffff)
+ chku64(uint64(i32), ci32&0xffffffffffffffff)
+ chku64(uint64(i64), ci64&0xffffffffffffffff)
+ chku64(uint64(u8), cu8&0xffffffffffffffff)
+ chku64(uint64(u16), cu16&0xffffffffffffffff)
+ chku64(uint64(u32), cu32&0xffffffffffffffff)
+ chku64(uint64(u64), cu64&0xffffffffffffffff)
+ // chku64(uint64(f32), 0)
+ // chku64(uint64(f64), 0)
}