Initial commit: Go 1.23 release state

test/ken/string.go

@@ -0,0 +1,114 @@
+// 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 string operations including printing.
+
+package main
+
+func main() {
+	var c string
+
+	a := `abc`
+	b := `xyz`
+
+	/* print a literal */
+	print(`abc`)
+
+	/* print a variable */
+	print(b, "-")
+
+	/* catenate literals */
+	print(`abc`+`xyz`, "-")
+
+	/* catenate variables */
+	print(a+b, "-")
+
+	/* compare literals */
+	if `abc` == `xyz` || `abc` != "abc" || `abc` > `xyz` {
+		panic("compare literals")
+	}
+
+	/* compare variables */
+	if a == b || a != a || a > b {
+		panic("compare variables")
+	}
+
+	/* cat */
+	c = a + b
+	print(c, "-")
+
+	/* catequal */
+	c = a
+	c += b
+	print(c, "-")
+
+	/* clumsy evaluation */
+	c = b
+	c = a + c
+	print(c, "-")
+
+	/* len */
+	if len(c) != 6 {
+		print("len ", len(c))
+		panic("fail")
+	}
+
+	/* index strings */
+	for i := 0; i < len(c); i = i + 1 {
+		if c[i] != (a + b)[i] {
+			print("index ", i, " ", c[i], " ", (a + b)[i])
+			panic("fail")
+		}
+	}
+
+	/* slice strings */
+	print(c[0:3], c[3:])
+
+	print("\n")
+
+	/* create string with integer constant */
+	c = string('x')
+	if c != "x" {
+		panic("create int " + c)
+	}
+
+	/* create string with integer variable */
+	v := 'x'
+	c = string(v)
+	if c != "x" {
+		panic("create int " + c)
+	}
+
+	/* create string with byte array */
+	var z1 [3]byte
+	z1[0] = 'a'
+	z1[1] = 'b'
+	z1[2] = 'c'
+	c = string(z1[0:])
+	if c != "abc" {
+		panic("create byte array " + c)
+	}
+
+	/* create string with int array */
+	var z2 [3]rune
+	z2[0] = 'a'
+	z2[1] = '\u1234'
+	z2[2] = 'c'
+	c = string(z2[0:])
+	if c != "a\u1234c" {
+		panic("create int array " + c)
+	}
+
+	/* create string with byte array pointer */
+	z3 := new([3]byte)
+	z3[0] = 'a'
+	z3[1] = 'b'
+	z3[2] = 'c'
+	c = string(z3[0:])
+	if c != "abc" {
+		panic("create array pointer " + c)
+	}
+}