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Diffstat (limited to '')
| -rw-r--r-- | test/literal.go | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/test/literal.go b/test/literal.go new file mode 100644 index 0000000..c3d6bc1 --- /dev/null +++ b/test/literal.go @@ -0,0 +1,229 @@ +// 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 literal syntax for basic types. + +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 { + panic("literal failed") + } +} |