-// $G $F.go && $L $F.$A && ./$A.out
+// 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");
+ print("BUG")
}
- nbad++;
- print(" ", msg);
+ 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");
+ 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");
+ 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");
+ 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");
+ 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");
+ 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");
+ 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");
+ 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");
+ 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;
+ var u30 uint64 = 0
+ var u31 uint64 = 1
+ var u32 uint64 = 18446744073709551615
+ var u33 uint64 = +18446744073709551615
+ _, _, _, _ = u30, u31, u32, u33
// float
- var f00 float = 3.14159;
- var f01 float = -3.14159;
- var f02 float = +3.14159;
- var f03 float = 0.0;
- var f04 float = .0;
- var f05 float = 0.;
- var f06 float = -0.0;
- var f07 float = 1e10;
- var f08 float = -1e10;
- var f09 float = 1e-10;
- var f10 float = 1e+10;
- var f11 float = 1.e-10;
- var f12 float = 1.e+10;
- var f13 float = .1e-10;
- var f14 float = .1e+10;
- var f15 float = 1.1e-10;
- var f16 float = 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(f09 == 1/f10, "f09");
- assert(f11 == f09, "f11");
- assert(f12 == f10, "f12");
- assert(f13 == f09/10.0, "f13");
- assert(f14 == f12/10.0, "f14");
- assert(f15 == f16/1e20, "f15");
+ 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");
+ 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";
-
- 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");
+ 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");
+ 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()
+ panic("literal failed")
}
}