// 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. 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 ) 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 ) 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) }