test/intcvt.go

   1 // $G $D/$F.go && $L $F.$A && ./$A.out
   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) { if i != v { panicln(i, "!=", v) } }
  40 func chki16(i, v int16) { if i != v { panicln(i, "!=", v) } }
  41 func chki32(i, v int32) { if i != v { panicln(i, "!=", v) } }
  42 func chki64(i, v int64) { if i != v { panicln(i, "!=", v) } }
  43 func chku8(i, v uint8) { if i != v { panicln(i, "!=", v) } }
  44 func chku16(i, v uint16) { if i != v { panicln(i, "!=", v) } }
  45 func chku32(i, v uint32) { if i != v { panicln(i, "!=", v) } }
  46 func chku64(i, v uint64) { if i != v { panicln(i, "!=", v) } }
  47 //func chkf32(f, v float32) { if f != v { panicln(f, "!=", v) } }
  48 //func chkf64(f, v float64) { if f != v { panicln(f, "!=", v) } }
  49
  50 func main() {
  51         chki8(int8(i8), ci8 & 0xff - 1<<8);
  52         chki8(int8(i16), ci16 & 0xff);
  53         chki8(int8(i32), ci32 & 0xff - 1<<8);
  54         chki8(int8(i64), ci64 & 0xff);
  55         chki8(int8(u8), cu8 & 0xff - 1<<8);
  56         chki8(int8(u16), cu16 & 0xff);
  57         chki8(int8(u32), cu32 & 0xff);
  58         chki8(int8(u64), cu64 & 0xff);
  59 //      chki8(int8(f32), 0);
  60 //      chki8(int8(f64), 0);
  61
  62         chki16(int16(i8), ci8 & 0xffff - 1<<16);
  63         chki16(int16(i16), ci16 & 0xffff - 1<<16);
  64         chki16(int16(i32), ci32 & 0xffff - 1<<16);
  65         chki16(int16(i64), ci64 & 0xffff - 1<<16);
  66         chki16(int16(u8), cu8 & 0xffff);
  67         chki16(int16(u16), cu16 & 0xffff - 1<<16);
  68         chki16(int16(u32), cu32 & 0xffff);
  69         chki16(int16(u64), cu64 & 0xffff - 1<<16);
  70 //      chki16(int16(f32), 0);
  71 //      chki16(int16(f64), 0);
  72
  73         chki32(int32(i8), ci8 & 0xffffffff - 1<<32);
  74         chki32(int32(i16), ci16 & 0xffffffff - 1<<32);
  75         chki32(int32(i32), ci32 & 0xffffffff - 1<<32);
  76         chki32(int32(i64), ci64 & 0xffffffff);
  77         chki32(int32(u8), cu8 & 0xffffffff);
  78         chki32(int32(u16), cu16 & 0xffffffff);
  79         chki32(int32(u32), cu32 & 0xffffffff - 1<<32);
  80         chki32(int32(u64), cu64 & 0xffffffff - 1<<32);
  81 //      chki32(int32(f32), 0);
  82 //      chki32(int32(f64), 0);
  83
  84         chki64(int64(i8), ci8 & 0xffffffffffffffff - 1<<64);
  85         chki64(int64(i16), ci16 & 0xffffffffffffffff - 1<<64);
  86         chki64(int64(i32), ci32 & 0xffffffffffffffff - 1<<64);
  87         chki64(int64(i64), ci64 & 0xffffffffffffffff - 1<<64);
  88         chki64(int64(u8), cu8 & 0xffffffffffffffff);
  89         chki64(int64(u16), cu16 & 0xffffffffffffffff);
  90         chki64(int64(u32), cu32 & 0xffffffffffffffff);
  91         chki64(int64(u64), cu64 & 0xffffffffffffffff - 1<<64);
  92 //      chki64(int64(f32), 0);
  93 //      chki64(int64(f64), 0);
  94
  95
  96         chku8(uint8(i8), ci8 & 0xff);
  97         chku8(uint8(i16), ci16 & 0xff);
  98         chku8(uint8(i32), ci32 & 0xff);
  99         chku8(uint8(i64), ci64 & 0xff);
 100         chku8(uint8(u8), cu8 & 0xff);
 101         chku8(uint8(u16), cu16 & 0xff);
 102         chku8(uint8(u32), cu32 & 0xff);
 103         chku8(uint8(u64), cu64 & 0xff);
 104 //      chku8(uint8(f32), 0);
 105 //      chku8(uint8(f64), 0);
 106
 107         chku16(uint16(i8), ci8 & 0xffff);
 108         chku16(uint16(i16), ci16 & 0xffff);
 109         chku16(uint16(i32), ci32 & 0xffff);
 110         chku16(uint16(i64), ci64 & 0xffff);
 111         chku16(uint16(u8), cu8 & 0xffff);
 112         chku16(uint16(u16), cu16 & 0xffff);
 113         chku16(uint16(u32), cu32 & 0xffff);
 114         chku16(uint16(u64), cu64 & 0xffff);
 115 //      chku16(uint16(f32), 0);
 116 //      chku16(uint16(f64), 0);
 117
 118         chku32(uint32(i8), ci8 & 0xffffffff);
 119         chku32(uint32(i16), ci16 & 0xffffffff);
 120         chku32(uint32(i32), ci32 & 0xffffffff);
 121         chku32(uint32(i64), ci64 & 0xffffffff);
 122         chku32(uint32(u8), cu8 & 0xffffffff);
 123         chku32(uint32(u16), cu16 & 0xffffffff);
 124         chku32(uint32(u32), cu32 & 0xffffffff);
 125         chku32(uint32(u64), cu64 & 0xffffffff);
 126 //      chku32(uint32(f32), 0);
 127 //      chku32(uint32(f64), 0);
 128
 129         chku64(uint64(i8), ci8 & 0xffffffffffffffff);
 130         chku64(uint64(i16), ci16 & 0xffffffffffffffff);
 131         chku64(uint64(i32), ci32 & 0xffffffffffffffff);
 132         chku64(uint64(i64), ci64 & 0xffffffffffffffff);
 133         chku64(uint64(u8), cu8 & 0xffffffffffffffff);
 134         chku64(uint64(u16), cu16 & 0xffffffffffffffff);
 135         chku64(uint64(u32), cu32 & 0xffffffffffffffff);
 136         chku64(uint64(u64), cu64 & 0xffffffffffffffff);
 137 //      chku64(uint64(f32), 0);
 138 //      chku64(uint64(f64), 0);
 139 }