test/intcvt.go

   1 // run
   2
   3 // Copyright 2009 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 package main
   8
   9 const (
  10         ci8  = -1 << 7
  11         ci16 = -1<<15 + 100
  12         ci32 = -1<<31 + 100000
  13         ci64 = -1<<63 + 10000000001
  14
  15         cu8  = 1<<8 - 1
  16         cu16 = 1<<16 - 1234
  17         cu32 = 1<<32 - 1234567
  18         cu64 = 1<<64 - 1234567890123
  19
  20         cf32 = 1e8 + 0.5
  21         cf64 = -1e8 + 0.5
  22 )
  23
  24 var (
  25         i8  int8  = ci8
  26         i16 int16 = ci16
  27         i32 int32 = ci32
  28         i64 int64 = ci64
  29
  30         u8  uint8  = cu8
  31         u16 uint16 = cu16
  32         u32 uint32 = cu32
  33         u64 uint64 = cu64
  34
  35         //      f32 float32 = 1e8 + 0.5
  36         //      f64 float64 = -1e8 + 0.5
  37 )
  38
  39 func chki8(i, v int8) {
  40         if i != v {
  41                 println(i, "!=", v)
  42                 panic("fail")
  43         }
  44 }
  45 func chki16(i, v int16) {
  46         if i != v {
  47                 println(i, "!=", v)
  48                 panic("fail")
  49         }
  50 }
  51 func chki32(i, v int32) {
  52         if i != v {
  53                 println(i, "!=", v)
  54                 panic("fail")
  55         }
  56 }
  57 func chki64(i, v int64) {
  58         if i != v {
  59                 println(i, "!=", v)
  60                 panic("fail")
  61         }
  62 }
  63 func chku8(i, v uint8) {
  64         if i != v {
  65                 println(i, "!=", v)
  66                 panic("fail")
  67         }
  68 }
  69 func chku16(i, v uint16) {
  70         if i != v {
  71                 println(i, "!=", v)
  72                 panic("fail")
  73         }
  74 }
  75 func chku32(i, v uint32) {
  76         if i != v {
  77                 println(i, "!=", v)
  78                 panic("fail")
  79         }
  80 }
  81 func chku64(i, v uint64) {
  82         if i != v {
  83                 println(i, "!=", v)
  84                 panic("fail")
  85         }
  86 }
  87 //func chkf32(f, v float32) { if f != v { println(f, "!=", v); panic("fail") } }
  88 //func chkf64(f, v float64) { if f != v { println(f, "!=", v); panic("fail") } }
  89
  90 func main() {
  91         chki8(int8(i8), ci8&0xff-1<<8)
  92         chki8(int8(i16), ci16&0xff)
  93         chki8(int8(i32), ci32&0xff-1<<8)
  94         chki8(int8(i64), ci64&0xff)
  95         chki8(int8(u8), cu8&0xff-1<<8)
  96         chki8(int8(u16), cu16&0xff)
  97         chki8(int8(u32), cu32&0xff)
  98         chki8(int8(u64), cu64&0xff)
  99         //      chki8(int8(f32), 0)
 100         //      chki8(int8(f64), 0)
 101
 102         chki16(int16(i8), ci8&0xffff-1<<16)
 103         chki16(int16(i16), ci16&0xffff-1<<16)
 104         chki16(int16(i32), ci32&0xffff-1<<16)
 105         chki16(int16(i64), ci64&0xffff-1<<16)
 106         chki16(int16(u8), cu8&0xffff)
 107         chki16(int16(u16), cu16&0xffff-1<<16)
 108         chki16(int16(u32), cu32&0xffff)
 109         chki16(int16(u64), cu64&0xffff-1<<16)
 110         //      chki16(int16(f32), 0)
 111         //      chki16(int16(f64), 0)
 112
 113         chki32(int32(i8), ci8&0xffffffff-1<<32)
 114         chki32(int32(i16), ci16&0xffffffff-1<<32)
 115         chki32(int32(i32), ci32&0xffffffff-1<<32)
 116         chki32(int32(i64), ci64&0xffffffff)
 117         chki32(int32(u8), cu8&0xffffffff)
 118         chki32(int32(u16), cu16&0xffffffff)
 119         chki32(int32(u32), cu32&0xffffffff-1<<32)
 120         chki32(int32(u64), cu64&0xffffffff-1<<32)
 121         //      chki32(int32(f32), 0)
 122         //      chki32(int32(f64), 0)
 123
 124         chki64(int64(i8), ci8&0xffffffffffffffff-1<<64)
 125         chki64(int64(i16), ci16&0xffffffffffffffff-1<<64)
 126         chki64(int64(i32), ci32&0xffffffffffffffff-1<<64)
 127         chki64(int64(i64), ci64&0xffffffffffffffff-1<<64)
 128         chki64(int64(u8), cu8&0xffffffffffffffff)
 129         chki64(int64(u16), cu16&0xffffffffffffffff)
 130         chki64(int64(u32), cu32&0xffffffffffffffff)
 131         chki64(int64(u64), cu64&0xffffffffffffffff-1<<64)
 132         //      chki64(int64(f32), 0)
 133         //      chki64(int64(f64), 0)
 134
 135
 136         chku8(uint8(i8), ci8&0xff)
 137         chku8(uint8(i16), ci16&0xff)
 138         chku8(uint8(i32), ci32&0xff)
 139         chku8(uint8(i64), ci64&0xff)
 140         chku8(uint8(u8), cu8&0xff)
 141         chku8(uint8(u16), cu16&0xff)
 142         chku8(uint8(u32), cu32&0xff)
 143         chku8(uint8(u64), cu64&0xff)
 144         //      chku8(uint8(f32), 0)
 145         //      chku8(uint8(f64), 0)
 146
 147         chku16(uint16(i8), ci8&0xffff)
 148         chku16(uint16(i16), ci16&0xffff)
 149         chku16(uint16(i32), ci32&0xffff)
 150         chku16(uint16(i64), ci64&0xffff)
 151         chku16(uint16(u8), cu8&0xffff)
 152         chku16(uint16(u16), cu16&0xffff)
 153         chku16(uint16(u32), cu32&0xffff)
 154         chku16(uint16(u64), cu64&0xffff)
 155         //      chku16(uint16(f32), 0)
 156         //      chku16(uint16(f64), 0)
 157
 158         chku32(uint32(i8), ci8&0xffffffff)
 159         chku32(uint32(i16), ci16&0xffffffff)
 160         chku32(uint32(i32), ci32&0xffffffff)
 161         chku32(uint32(i64), ci64&0xffffffff)
 162         chku32(uint32(u8), cu8&0xffffffff)
 163         chku32(uint32(u16), cu16&0xffffffff)
 164         chku32(uint32(u32), cu32&0xffffffff)
 165         chku32(uint32(u64), cu64&0xffffffff)
 166         //      chku32(uint32(f32), 0)
 167         //      chku32(uint32(f64), 0)
 168
 169         chku64(uint64(i8), ci8&0xffffffffffffffff)
 170         chku64(uint64(i16), ci16&0xffffffffffffffff)
 171         chku64(uint64(i32), ci32&0xffffffffffffffff)
 172         chku64(uint64(i64), ci64&0xffffffffffffffff)
 173         chku64(uint64(u8), cu8&0xffffffffffffffff)
 174         chku64(uint64(u16), cu16&0xffffffffffffffff)
 175         chku64(uint64(u32), cu32&0xffffffffffffffff)
 176         chku64(uint64(u64), cu64&0xffffffffffffffff)
 177         //      chku64(uint64(f32), 0)
 178         //      chku64(uint64(f64), 0)
 179 }