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// $G $F.go && $L $F.$A && ./$A.out

// 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

var nbad int

func assert(cond bool, msg string) {
        if !cond {
                if nbad == 0 {
                        print("BUG")
                }
                nbad++
                print(" ", msg)
        }
}

func equal(a, b float32) bool {
        return a == b
}


func main() {
        // bool
        var t bool = true
        var f bool = false
        assert(t == !f, "bool")

        // int8
        var i00 int8 = 0
        var i01 int8 = 1
        var i02 int8 = -1
        var i03 int8 = 127
        var i04 int8 = -127
        var i05 int8 = -128
        var i06 int8 = +127
        assert(i01 == i00+1, "i01")
        assert(i02 == -i01, "i02")
        assert(i03 == -i04, "i03")
        assert(-(i05+1) == i06, "i05")

        // int16
        var i10 int16 = 0
        var i11 int16 = 1
        var i12 int16 = -1
        var i13 int16 = 32767
        var i14 int16 = -32767
        var i15 int16 = -32768
        var i16 int16 = +32767
        assert(i11 == i10+1, "i11")
        assert(i12 == -i11, "i12")
        assert(i13 == -i14, "i13")
        assert(-(i15+1) == i16, "i15")

        // int32
        var i20 int32 = 0
        var i21 int32 = 1
        var i22 int32 = -1
        var i23 int32 = 2147483647
        var i24 int32 = -2147483647
        var i25 int32 = -2147483648
        var i26 int32 = +2147483647
        assert(i21 == i20+1, "i21")
        assert(i22 == -i21, "i22")
        assert(i23 == -i24, "i23")
        assert(-(i25+1) == i26, "i25")
        assert(i23 == (1<<31)-1, "i23 size")

        // int64
        var i30 int64 = 0
        var i31 int64 = 1
        var i32 int64 = -1
        var i33 int64 = 9223372036854775807
        var i34 int64 = -9223372036854775807
        var i35 int64 = -9223372036854775808
        var i36 int64 = +9223372036854775807
        assert(i31 == i30+1, "i31")
        assert(i32 == -i31, "i32")
        assert(i33 == -i34, "i33")
        assert(-(i35+1) == i36, "i35")
        assert(i33 == (1<<63)-1, "i33 size")

        // uint8
        var u00 uint8 = 0
        var u01 uint8 = 1
        var u02 uint8 = 255
        var u03 uint8 = +255
        assert(u01 == u00+1, "u01")
        assert(u02 == u03, "u02")
        assert(u03 == (1<<8)-1, "u03 size")

        // uint16
        var u10 uint16 = 0
        var u11 uint16 = 1
        var u12 uint16 = 65535
        var u13 uint16 = +65535
        assert(u11 == u10+1, "u11")
        assert(u12 == u13, "u12")

        // uint32
        var u20 uint32 = 0
        var u21 uint32 = 1
        var u22 uint32 = 4294967295
        var u23 uint32 = +4294967295
        assert(u21 == u20+1, "u21")
        assert(u22 == u23, "u22")

        // uint64
        var u30 uint64 = 0
        var u31 uint64 = 1
        var u32 uint64 = 18446744073709551615
        var u33 uint64 = +18446744073709551615
        _, _, _, _ = u30, u31, u32, u33

        // float
        var f00 float32 = 3.14159
        var f01 float32 = -3.14159
        var f02 float32 = +3.14159
        var f03 float32 = 0.0
        var f04 float32 = .0
        var f05 float32 = 0.
        var f06 float32 = -0.0
        var f07 float32 = 1e10
        var f08 float32 = -1e10
        var f09 float32 = 1e-10
        var f10 float32 = 1e+10
        var f11 float32 = 1.e-10
        var f12 float32 = 1.e+10
        var f13 float32 = .1e-10
        var f14 float32 = .1e+10
        var f15 float32 = 1.1e-10
        var f16 float32 = 1.1e+10
        assert(f01 == -f00, "f01")
        assert(f02 == -f01, "f02")
        assert(f03 == f04, "f03")
        assert(f04 == f05, "f04")
        assert(f05 == f06, "f05")
        assert(f07 == -f08, "f07")
        assert(equal(f09, 1/f10), "f09")
        assert(f11 == f09, "f11")
        assert(f12 == f10, "f12")
        assert(equal(f13, f09/10.0), "f13")
        assert(equal(f14, f12/10.0), "f14")
        assert(equal(f15, f16/1e20), "f15")

        // character
        var c0 uint8 = 'a'
        var c1 uint8 = 'ä'
        var c2 uint8 = '\a'
        var c3 uint8 = '\b'
        var c4 uint8 = '\f'
        var c5 uint8 = '\n'
        var c6 uint8 = '\r'
        var c7 uint8 = '\t'
        var c8 uint8 = '\v'
        // var c9 uint8 = '本' // correctly caught as error
        var c9 uint16 = '本'
        assert(c0 == 0x61, "c0")
        assert(c1 == 0xe4, "c1")
        assert(c2 == 0x07, "c2")
        assert(c3 == 0x08, "c3")
        assert(c4 == 0x0c, "c4")
        assert(c5 == 0x0a, "c4")
        assert(c6 == 0x0d, "c6")
        assert(c7 == 0x09, "c7")
        assert(c8 == 0x0b, "c8")
        assert(c9 == 0x672c, "c9")

        var c00 uint8 = '\000'
        var c01 uint8 = '\007'
        var c02 uint8 = '\177'
        var c03 uint8 = '\377'
        assert(c00 == 0, "c00")
        assert(c01 == 7, "c01")
        assert(c02 == 127, "c02")
        assert(c03 == 255, "c03")

        var cx0 uint8 = '\x00'
        var cx1 uint8 = '\x0f'
        var cx2 uint8 = '\xff'
        assert(cx0 == 0, "cx0")
        assert(cx1 == 15, "cx1")
        assert(cx2 == 255, "cx2")

        var cu0 uint16 = '\u1234'
        var cu1 uint32 = '\U00101234'
        assert(cu0 == 0x1234, "cu0")
        assert(cu1 == 0x101234, "cu1")

        // string
        var s0 string = ""
        var s1 string = "hellô"
        assert(s1[0] == 'h', "s1-0")
        assert(s1[4] == 0xc3, "s1-4")
        assert(s1[5] == 0xb4, "s1-5")
        var s2 string = "\a\b\f\n\r\t\v"
        _, _ = s0, s2

        var s00 string = "\000"
        var s01 string = "\007"
        var s02 string = "\377"
        assert(s00[0] == 0, "s00")
        assert(s01[0] == 7, "s01")
        assert(s02[0] == 255, "s02")

        var x00 string = "\x00"
        var x01 string = "\x0f"
        var x02 string = "\xff"
        assert(x00[0] == 0, "x00")
        assert(x01[0] == 15, "x01")
        assert(x02[0] == 255, "x02")

        // these are all the same string
        var sj0 string = "日本語"
        var sj1 string = "\u65e5\u672c\u8a9e"
        var sj2 string = "\U000065e5\U0000672c\U00008a9e"
        var sj3 string = "\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e"
        assert(sj0 == sj1, "sj1")
        assert(sj0 == sj2, "sj2")
        assert(sj0 == sj3, "sj3")

        if nbad > 0 {
                println()
        }
}